オカグレート List of Products and Services

We would like to introduce the features of our "Gazelle Slit" (for U-shaped gutters). The stainless steel Gazelle Slit cover, along with the stainless steel frame, creates a slim and beautiful slit cover that enhances the landscape. By simply placing the frame on top of concrete secondary products U-shaped gutters such as U-150, U-180, U-240, and U-300, and securing it with bolts, the construction time can be significantly shortened. After installation, the slim and beautiful slit lines will adorn the pavement surface. Additionally, the cover uses a rain gap type with a 6mm gap, allowing for comfortable passage for wheelchairs, strollers, and high heels. It is suitable for exteriors, entrances, and other outdoor areas of buildings, apartments, and commercial facilities. 【Features】 ■ After installation, the slim and beautiful drainage slit lines will enhance the pavement surface. ■ Load capacity is compatible with T-14, T-2, and pedestrian use. ■ Installation is simply placing the frame on top of the U-shaped gutter and securing it with bolts. ■ The cover uses a fine gap type with a 6mm gap. *For more details, please refer to the PDF document or feel free to contact us.

• Gutters and U-shaped gutters

We would like to introduce the "flat rubber" handled by Okagreat Co., Ltd. Flat rubber for grating! Flat rubber mat for grating. It has a significant heat insulation effect with frames and concrete structures! It provides sound insulation in various situations. Prevents rattling, bouncing, entrapment, and play in the grating itself. *For more details, please refer to the PDF document or feel free to contact us.

• Grating

We would like to introduce the "Z Rubber" handled by Okagreat Co., Ltd. "Z Rubber" for grating! Z-shaped rubber for grating. It is used in various situations such as concrete secondary products, receiving frames for site-cast gutters, and catch basins, providing support. It prevents wobbling, bouncing, entrapment, and shifting of the grating itself. *For more details, please refer to the PDF document or feel free to contact us.

• Grating

We would like to introduce the "Drain Cover Cap" handled by Okagreat Co., Ltd. The "Drain Cover Cap" for sealing the handle holes of drain covers! A cap for the handle holes of concrete drain covers. It prevents small change, coins, keys, and other important items from falling into the gutter. *For more details, please refer to the PDF document or feel free to contact us.

• Gutters and U-shaped gutters

We would like to introduce the "Grating Theft Prevention Chain" handled by Okagreat Co., Ltd. The "Grating Theft Prevention Chain" for grating! The classic choice for preventing grating theft! A quintessential product for theft prevention. With just this one item, it prevents grating from being taken to scrap. Whether it's theft prevention, burglary, scrap, recycling plants, disposal sites, and more, even if someone tries to take it away, the chain is connected to the ground, preventing theft and other issues. *For more details, please refer to the PDF document or feel free to contact us.

• Gutters and U-shaped gutters

The "Safety Walker G・D" and "Safety Walker L・D" are an evolved type of grating that, compared to conventional grating, is less prone to clogging from small stones and debris, always maintaining hygiene, has an appealing appearance, and is resistant to damage due to its surface material structure. This makes it useful in various scenarios. In addition to being suitable for site-cast gratings, it can also be used for various types of drop-in and bolt-fixed gratings, raised types, and other special dimension covers (please consult us for concrete precast products, etc.). Due to its structural design, the surface is made of a material structure that is strong against twisting and impacts from vehicle tires, making it difficult for the grating to break. It is also ideal for preventing grating damage. Moreover, its design minimizes the accumulation of stones and debris on the grating itself, preserving the aesthetic appeal. Multiple slit holes are made in the surface material of "striped steel plates" or "patterned steel plates," balancing drainage and strength. Additionally, it has been reported that its slip resistance exceeds that of conventional types. When grating frequently breaks near entrances and exits, the difference is noticeable when passing through with golf carts, for example. It is clear that it is different from conventional grating.

• Landscaping

The "Safety Walker G・D" and "Safety Walker L・D" are an evolved type of grating that, compared to conventional grating, is less likely to become clogged with small stones and debris, ensuring it remains hygienic at all times. It also has an appealing appearance and is less prone to damage due to its surface material structure, making it useful in various scenarios. In addition to being suitable for site-cast grating, it can also be used for various types of drop-in and bolt-fixed grating, raised types, and other specially sized covers (such as for concrete precast products, please feel free to consult us). Due to its structural design, the surface is made of material that is strong against twisting and impacts from vehicle tires, making it difficult for the grating to break. It is also ideal for preventing grating damage. Furthermore, due to its structure, the grating itself is less likely to become clogged with stones and debris, preserving the aesthetic. Multiple slit holes are made in the "striped steel plate" or "patterned steel plate" on the surface, balancing drainage and strength. It has also been reported to exceed the slip resistance of conventional types. It is recommended for areas where grating frequently breaks, such as near entrances, or where tires from forklifts and large vehicles may cause damage.

• Grating

We would like to introduce the "Special Hook Fitting for Fine Grating" handled by Okagreat Co., Ltd. This "Special Hook Fitting for Fine Grating" is useful when you want to lift grating to maintain or clean site-cast drainage pits, site-cast gutters, ditches, and concrete secondary products like pits and gutters. Of course, it can also lift standard grating. However, it is quite difficult to lift fine grating without any tools. With this "Special Hook Fitting for Fine Grating," you can hold one in each hand, allowing you to lift it steadily with both hands. If there are two people, you can lift it steadily using four of these special hook fittings. It is effective in various situations, such as community cleaning activities, cleaning gutters before heavy rain seasons, and daily cleaning of on-site gutters. Moreover, it has a simple structure, is lightweight, and economical. We have heard voices saying, "I used to tie ropes or wires to lift grating." This product solves that problem. *For more details, please refer to the PDF document or feel free to contact us.

• Grating

A standard stainless steel grating! SUS304 stainless steel grating. It features a flat bar type with main component pitches of 30, 22, 15, 13, and 11 millimeters. The minimum gap is 7 millimeters. We have a wealth of delivery records for stainless steel (SUS304) grating used in kitchens, food service centers, and food factories. We would like to introduce the "embedded type" of flat bar grating. The surface of the grating is available in three types: plain type, non-slip type, and knurled type. The pitches of the main components (main bars) are: P30 (gap 26 millimeters) P22 (gap 18 millimeters) P15 (gap 11 millimeters) P13 (gap 9 millimeters) P11 (gap 7 millimeters) We can accommodate various dimensions according to your design drawings. Please feel free to consult us first.

• Cooking facility equipment and supplies

We would like to introduce the "Screen Grating" handled by Okagreat Co., Ltd. We have been hearing a lot about marine pollution caused by plastic waste. With the introduction of paid plastic bags and the shift to paper straws in various industries, efforts are being made to reduce plastic waste. This "Screen Grating" integrates the grating and the debris screen, which were traditionally installed separately, achieving significant cost savings. It is installed at the edge of the drainage channel to prevent debris from entering the interior, and when the screen is not in use, it can be easily stored in the grating body with a one-touch mechanism. Removing accumulated debris is also simple. It is suitable for U-shaped channels for concrete secondary products and for raised grating for longitudinal use, among others. (The main image shows the "U-shaped channel type," and the sub-image shows the JIS drainage channel type.) Please feel free to consult us regarding U-180, U-240, U-300, and other special or custom dimensions for concrete secondary products. If you have any inquiries, please do not hesitate to contact us.

• Grating

Okajima Logistics Co., Ltd. is a company responsible for the centralization of distribution within the group in the diversified distribution business. By accurately grasping market activities, we have contributed to the reduction of distribution costs. We handle not only the transportation of products and processed goods (such as steel grating, stainless steel grating, screens, fabricated metal products, and frames) within group companies, but also large steel materials like H-beams from general customers, long steel materials such as equal angle steel and flat bars, heavy items like large signs and stairs, as well as charter transportation and industrial waste transportation. We consistently receive high evaluations from customers in terms of service and transportation quality. Please feel free to consult us regarding concrete secondary products, corrugated pipes, and other civil engineering materials, construction materials, timber, civil engineering offices, the Ministry of Land, Infrastructure, Transport and Tourism, prefectures, cities, NEXCO, etc. 10-ton wing vehicles, 10-ton flat body vehicles, 6-ton unic vehicles, 4-ton wing vehicles, 4-ton flat body vehicles. [Transportation Targets] ■ Products and processed goods ■ Heavy items such as large steel materials, structures, and marine containers ■ Industrial waste *For more details, please refer to the PDF document or feel free to contact us.

• Piping materials (plastic pipes)

We would like to introduce the "Cast Iron Grate Cover" (Cast Iron Grate Mesh) handled by Okagreat Co., Ltd. An essential item for apartment buildings and condominiums! It collects and drains rainwater on the premises. Featuring a chic, calm color and a matte finish with "Rust-Resistant Black Paint." The photo shows a fine mesh. It is almost always included in the design plans for new properties from major manufacturers of multi-family housing, and it is commonly installed in familiar places. It is versatile and used in various scenarios, such as on-site casting and repurposing for concrete precast products! The material is the same as that used for manholes, with both the grate cover and frame made of "FC200 Cast Iron" or "FCD500 Ductile Iron." 〇SHASE-S209 is compatible with the standard frame. Please feel free to consult us when you need assistance. 【Features】 ■ Aesthetic appeal ■ Easy installation ■ Safety *For more details, please refer to the PDF document or feel free to contact us.

• Manhole body

We would like to introduce the "Cast Iron Grate" (Cast Iron Grating) handled by Okagreat Co., Ltd. An essential item for apartment buildings and condominiums! It collects and drains rainwater on the premises. Featuring a chic, calm color and a matte finish with "Rust-Resistant Black Paint." The photo shows a standard view. It is almost always included in the design plans for new properties from major manufacturers of multi-family housing, and it is commonly installed in familiar places. It is versatile and can be used in various scenarios, such as site-cast concrete or as precast concrete products! The material is the same as that used for manholes, with both the grate and frame made of "FC200 Cast Iron" or "FCD500 Ductile Iron"! 〇SHASE-S209 Product Please feel free to consult us when you need assistance. 【Features】 ■ Aesthetic appeal ■ Easy installation ■ Safety *For more details, please refer to the PDF document or feel free to contact us.

• Manhole body

The new comprehensive catalog 2024-2025 edition from Okagreat Co., Ltd. titled "2024-2025 Comprehensive Catalog" has been released! It features new types of grating such as "Safety Walker," "OG Lock U," "Premium Expand," "Neo Slit," and OG Super High Tensile High Strength Stainless Steel Grating "Fine Grate," among many original products and gratings! If you're looking for something a little different from conventional gratings, something you've never seen before, or gratings that better match the landscape, you might find them in this catalog. This catalog addresses issues such as road bike tires not fitting, bicycles, scooters, canes not fitting, and cart wheels not fitting into gratings. If you would like a copy of the new "2024-2025 Comprehensive Catalog," please feel free to contact us.

• Grating

The "Safety Walker G・D" and "Safety Walker L・D" are advanced grating systems that are less prone to clogging from small stones and debris compared to traditional grating, ensuring they remain hygienic at all times. They also have an appealing appearance and are less likely to break due to their surface material structure, making them useful in various scenarios. They can be used not only as grating for on-site casting but also for various types such as drop-in and bolt-fixed styles, raised types, and other specially sized covers (please consult us for concrete precast products, etc.). Due to their structural design with a surface material structure, they are strong against twisting and impacts from vehicle tires, making them very resistant to breakage. They are also ideal for preventing grating damage. Additionally, the design minimizes the likelihood of stones and debris getting stuck in the grating, preserving the aesthetic. Multiple slit holes are created in the "striped steel plate" or "patterned steel plate" on the surface to balance drainage and strength. Furthermore, it has been reported that the slip resistance exceeds that of traditional types. These are recommended for areas where grating frequently breaks, such as near entrances, or where tires from forklifts and large vehicles may cause damage.

• Grating

We would like to introduce the "Screen Grating" handled by Okagreat Co., Ltd. We have been hearing more news about marine pollution caused by plastic waste. With the introduction of fees for plastic bags and the shift to paper straws in various industries, efforts are being made to reduce plastic waste. This "Screen Grating" integrates the grating and the debris screen, which were traditionally installed separately, achieving significant cost savings. It is installed at the edge of the drainage ditch to prevent debris from flowing into the interior, and when the screen is not in use, it can be easily stored in the grating body with a one-touch mechanism. Removing accumulated debris is also simple. It is suitable for U-shaped ditches for concrete secondary products and for longitudinal raised gratings, among others. (The main image shows the "U-shaped ditch type," and the sub-image shows the JIS drainage type.) Please feel free to consult us regarding U-180, U-240, U-300, and other special or custom dimensions for concrete secondary products. If you have any inquiries, please do not hesitate to contact us.

• Grating

We would like to introduce "Super Drain," handled by Okagreat Co., Ltd. It forms a drainage channel along the curb, draining water from above as well as infiltrated water from permeable asphalt. A slim and smart slit grating. The gutter-type receiving frame has a cross-sectional shape (D-type frame) that makes it difficult for debris to accumulate. We also offer a flat-bottom type gutter receiving frame. Drainage holes for permeable asphalt can also be added to the side of the gutter receiving frame. It features bolt fastening or slide fastening to prevent lifting. Both the cover and receiving frame are made of steel with a hot-dip galvanized finish. It is installed in familiar locations. Please feel free to consult us when you need assistance. 【Features】 ■ Excellent water flow ■ Easy to clean ■ Outstanding safety *For more details, please refer to the PDF document or feel free to contact us.

• Grating

We would like to introduce the "OG Super High Tensile High Strength Stainless Steel Grating New Model" handled by Okagreat Co., Ltd., specifically the "Fine Grate" (U-shaped drain type). The manufacturing method of the OG Super High Tensile High Strength Stainless Steel Grating has been improved! It demonstrates high durability against loads in the "twisting" direction! The new model combines the uneven parts of two components for enhanced structural strength, achieving even higher load-bearing performance. It also exhibits high durability against twisting loads caused by "vehicle tires," which has been a challenge for conventional products. Additionally, the "R" shape of the flange allows rainwater to be quickly directed into the side ditch, further enhancing drainage performance. Please feel free to consult with us when you need assistance.

• Gutters and U-shaped gutters

The new comprehensive catalog for 2024-2025 from Okagreat Co., Ltd., titled "2024-2025 Comprehensive Catalog," has been released! It features new types of grating such as "Safety Walker," "OG Lock U," "Premium Expand," "Neo Slit," and OG Super High Tensile High Strength Stainless Steel Grating "Fine Grate," among many original products and gratings! If you are looking for something a little different from conventional gratings, something you haven't seen before, or gratings that better match the landscape, you might find them in this catalog. This catalog addresses issues with gratings that do not accommodate road bike tires, bicycles, scooters, canes, or cart wheels. If you would like a copy of the "2024-2025 Comprehensive Catalog," please feel free to contact us.

• Gutters and U-shaped gutters

A standard stainless steel grating! SUS304 stainless steel grating. Flat bar type with main member pitch of 30, 22, 15, 13, and 11 millimeters. The minimum gap is 7 millimeters. We have a wealth of delivery records for stainless steel (SUS304) grating used in kitchens, kitchen facilities, food service centers, and food factories. We would like to introduce the "embedded type" of flat bar type. The surface of the grating is available in three types: plain type, non-slip type, and knurled type. The pitch of the main members (main bars) is: P30 (gap 26 millimeters) P22 (gap 18 millimeters) P15 (gap 11 millimeters) P13 (gap 9 millimeters) P11 (gap 7 millimeters) We can accommodate various dimensions according to the design drawings. Please feel free to consult us.

• Clean Room

The "Safety Walker G・D" and "Safety Walker L・D" are advanced grating systems that are less prone to clogging from small stones and debris compared to traditional grating, ensuring they remain hygienic at all times. They also have an attractive appearance and are less likely to break due to their surface material structure, making them useful in various settings. They can be used not only as grating for on-site casting but also for various types of drop-in and bolt-fixed grating, raised types, and other specially sized covers (please consult us for concrete precast products, etc.). Due to their structural design, the surface is made of a material structure that is resistant to twisting and impact from vehicle tires, making the grating very durable. They are also ideal for preventing grating damage. Additionally, the design minimizes the accumulation of stones and debris on the grating itself, preserving the aesthetic. The surface features multiple slit holes in the "striped steel plate" or "patterned steel plate," balancing drainage and strength. Furthermore, it has been reported that the slip resistance exceeds that of traditional models. These grating systems are recommended for areas where grating frequently gets damaged, such as near entrances, or where tires from forklifts and large vehicles may cause breakage.

• Exterior and paving materials <General>

Okajima Logistics Co., Ltd. is a company responsible for the centralization of distribution within the group in the diversified distribution business. By accurately grasping market activities, we have contributed to reducing distribution costs. We handle not only the transportation of products and processed goods (such as steel grating, stainless steel grating, screens, fabricated metal products, and frames) within group companies but also large steel materials like H-beams from general customers, long steel materials such as equal angle steel and flat bars, heavy items like large signs and stairs, marine containers, charter transportation, and industrial waste transportation, consistently receiving high evaluations from customers in terms of service and transportation quality. Please feel free to consult us regarding concrete secondary products, corrugated pipes, and other civil engineering materials, construction materials, timber, civil engineering offices, the Ministry of Land, Infrastructure, Transport and Tourism, prefectures, cities, NEXCO, etc. 10-ton wing trucks, 10-ton flatbed trucks, 6-ton unic trucks, 4-ton wing trucks, and 4-ton flatbed trucks. 【Transport Targets】 ■ Products and processed goods ■ Heavy items such as large steel materials, structures, and marine containers ■ Industrial waste * For more details, please refer to the PDF materials or feel free to contact us.

• container

We would like to introduce the "Premium Lock Nut" (anti-theft special nut for grating) handled by Okagreat Co., Ltd. You may often hear news about grating thefts. Many of you might imagine that the stolen gratings are taken to scrap metal collection. This product is designed to prevent theft in the first place. By tightening the M16 bag nut used for bolt-fixed gratings with a special nut, it helps deter theft. It has a unique nut shape, so it can only be turned with a dedicated socket wrench key. For more details, please feel free to contact us.

• Exterior and paving materials <General>

Okajima Logistics Co., Ltd. is a company responsible for the centralization of distribution within the group in the diversified logistics business. By accurately grasping market activities, we have contributed to the reduction of distribution costs. We handle not only the transportation of products and processed goods (such as steel grating, stainless steel grating, screens, fabricated metal products, and frames) within group companies but also large steel materials like H-beams from general customers, long steel materials such as equal angle steel and flat bars, heavy items like large signs and stairs, marine containers, charter transportation, and the transport of industrial waste. We consistently receive high evaluations from our customers in terms of service and transportation quality. Please feel free to consult us regarding concrete secondary products, corrugated pipes, and other civil engineering materials, construction materials, timber, civil engineering offices, the Ministry of Land, Infrastructure, Transport and Tourism, prefectures, cities, NEXCO, etc. 10-ton wing vehicles, 10-ton flat body vehicles, 6-ton unic vehicles, 4-ton wing vehicles, 4-ton flat body vehicles. [Transport Targets] ■ Products and processed goods ■ Heavy items such as large steel materials, structures, and marine containers ■ Industrial waste *For more details, please refer to the PDF document or feel free to contact us.

• container

The "Safety Walker G・D" and "Safety Walker L・D" are an evolved type of grating that, compared to conventional grating, is less prone to clogging from small stones and debris, always maintaining hygiene, has an attractive appearance, and is less likely to break due to its surface material structure, making it useful in various scenes. In addition to being used as grating for on-site casting, it can also be used for various types of recessed and bolt-fixed grating, raised types, and other special dimension covers (please consult us for concrete secondary products, etc.). Due to its structural design, the surface is made of material that is strong against twisting and impacts from vehicle tires, making it difficult for the grating to break. It is also suitable for preventing grating damage. Moreover, due to its structure, the grating itself is less likely to become clogged with stones or debris, preserving the landscape. Multiple slit holes are made in the surface material of "striped steel plates" or "patterned steel plates," balancing drainage and strength. It has also been reported that its anti-slip effect exceeds that of conventional types. It is recommended for areas where grating frequently gets damaged, such as near entrances, or where tires from forklifts and large vehicles tend to break it.

• Exterior and paving materials <General>

We would like to introduce the "stainless steel grating for entrance mats" handled by Okagreat Co., Ltd. The main bar is of the T-bar type, available in head widths of 6.0mm and 8.0mm. The height of the T-bar comes in two sizes: 15mm and 20mm. It can be used for various purposes such as "entrance mats," "foot washing areas," "in front of entrances," and "in front of elevators." We can accommodate various dimensions according to your design drawings. Please feel free to consult with us.

• Entrance/Exterior Doors

A standard stainless steel grating! SUS304 stainless steel grating. It features a flat bar type with main material pitches of 30, 22, 15, 13, and 11 millimeters. The minimum gap is 7 millimeters. We have a wealth of delivery records for stainless steel (SUS304) grating used in kitchens, food service centers, and food factories. We would like to introduce the "integrated type" of flat bar grating. The surface of the grating is available in three types: plain type, non-slip type, and knurled type. The main material (main bar) pitches are: P30 (gap 26 millimeters) P22 (gap 18 millimeters) P15 (gap 11 millimeters) P13 (gap 9 millimeters) P11 (gap 7 millimeters) We can accommodate various dimensions according to your design drawings. Please feel free to consult with us.

• Sanitary fixtures

We would like to introduce the "Rubber Cap for Bolt Fixation" handled by Okagreat Co., Ltd. This bolt-fixed grating, finished with galvanized steel, fits most gratings (such as site-cast trench covers, drainage pits, and concrete precast products). (Please consult us for exceptions like special gratings or long-span gratings.) The bolt and nut section of the bolt-fixed grating has a square cutout hole, which can be sealed with this rubber cap. Please feel free to contact us when you need assistance.

• Exterior and paving materials <General>

The "Safety Walker G·D" U-shaped gutter type is not only suitable as a grating for on-site casting, but also for various types of drop-in and bolt-fixed covers, raised types, and other special dimensions. (For concrete precast products, please feel free to consult us.) Due to its structural design, the top surface has a rugged material structure, making it resistant to twisting and impacts from vehicle tires, which prevents the grating from breaking easily and is ideal for damage prevention. Additionally, the design minimizes the likelihood of stones and debris getting trapped in the grating, preserving the aesthetic appearance. The top surface features a special steel plate ribbed with a rugged pattern, with multiple slit holes to balance drainage and strength. It has also been reported that its slip resistance exceeds that of conventional types. *For more details, please refer to the PDF materials or feel free to contact us.

• Exterior and paving materials <General>

We would like to introduce the "OG Super High Tensile High Strength Stainless Steel Grating New Model" handled by Okagreat Co., Ltd., specifically the "Fine Grate" (U-shaped drain type). The manufacturing method of the OG Super High Tensile High Strength Stainless Steel Grating has been improved! It exhibits high durability performance against loads in the "twisting" direction! The new model combines the uneven parts of two components for bonding. This structurally enhances strength and achieves even higher load-bearing performance. It demonstrates high durability performance against "twisting" loads caused by "vehicle tires," which has been a weakness of conventional products. Additionally, the "R" shape of the flange allows rainwater to be quickly directed into the side ditch, improving drainage performance. Please feel free to consult with us when you need assistance.

• Exterior and paving materials <General>

We would like to introduce the "Screen Orifice" handled by Okagreat Co., Ltd. The materials used are stainless steel or galvanized steel. The screen part catches debris, while the orifice adjusts the flow rate. This is an integrated product of the screen and orifice. The standard mesh size for the screen part is 50mm x 50mm. Please feel free to consult us for custom dimensions.

• Exterior and paving materials <General>

The new comprehensive catalog for 2024-2025 from Okagreat Co., Ltd., titled "2024-2025 Comprehensive Catalog," has been released! It features new types of grating such as "Safety Walker," "OG Lock U," "Premium Expand," "Neo Slit," and OG Super High-Tensile High-Strength Stainless Steel Grating "Fine Grate," among many original products and gratings! If you are looking for something a little different from conventional gratings, something you haven't seen before, or gratings that better match the landscape, you may find them in this catalog. This catalog addresses issues such as road bike tires not fitting, bicycles, scooters, canes not fitting, and cart wheels not fitting into gratings. If you would like a copy of the "2024-2025 Comprehensive Catalog," please feel free to contact us.

• Exterior and paving materials <General>

We would like to introduce the "Decorative Cover" (made of steel for drainage basins) handled by Okagreat Co., Ltd. (finished with hot-dip galvanized coating). This steel "Decorative Cover" is designed to be filled with interlocking blocks at private sites, commercial facilities, and other exterior construction projects, blending smartly into the landscape. With a hot-dip galvanized steel finish, it offers high corrosion resistance and a very sleek appearance. It is intended for site-cast drainage basins, and the receiving frame is also made of hot-dip galvanized steel. Please feel free to consult us regarding concrete precast products or drainage basins with special dimensions. *For more details, please refer to the PDF document or feel free to contact us.

• Exterior and paving materials <General>

We would like to introduce the "Decorative Cover" (made of steel for drainage ditches) handled by Okagreat Co., Ltd. This is a steel "decorative cover" (finished with hot-dip galvanizing) that blends smartly into the landscape when filled with interlocking blocks in private sites, commercial facilities, and other exterior construction projects. With its hot-dip galvanized steel finish, it offers high corrosion resistance and a very sleek appearance. The frame for site-cast drainage ditches is also made of hot-dip galvanized steel. We can also provide a frame for the decorative cover that can be secured simply by tightening bolts to the U-shaped concrete secondary products. *For more details, please refer to the PDF document or feel free to contact us.

• Exterior and paving materials <General>

We would like to introduce the "Decorative Cover" (made of stainless steel for drainage basins) handled by Okagreat Co., Ltd. This stainless steel "Decorative Cover" is designed to blend seamlessly into the landscape, filled with colored pavement or tiles, and is suitable for private sites, commercial facilities, and other exterior construction projects. Being made of stainless steel, it has high corrosion resistance and is very sleek and attractive. It is designed for on-site drainage basins, and the receiving frame is also made entirely of stainless steel. Please feel free to consult us regarding concrete precast products or drainage basins with special opening dimensions. *For more details, please refer to the PDF materials or feel free to contact us.

• Exterior and paving materials <General>

We would like to introduce the "Decorative Covers" (made of stainless steel, for drainage ditches, color paving, and tiles) handled by Okagreat Co., Ltd. These stainless steel "Decorative Covers" are designed to be filled with color paving or tiles in private sites, commercial facilities, and other exterior construction projects, blending seamlessly into the landscape. Being made of stainless steel, they are highly corrosion-resistant and very sleek and beautiful. The drainage ditch covers are made entirely of stainless steel. We also offer stainless steel receiving frames that can be fixed to concrete U-shaped ditches simply by tightening bolts for the decorative covers. *For more details, please refer to the PDF materials or feel free to contact us.

• Exterior and paving materials <General>

We would like to introduce the "Decorative Cover" (made of stainless steel for drainage basins) handled by Okagreat Co., Ltd. This stainless steel "Decorative Cover" is designed to be filled with interlocking blocks in private sites, commercial facilities, and other exterior construction projects, blending seamlessly into the landscape. Being made of stainless steel, it has high corrosion resistance and is very sleek and clean. It is intended for site-cast drainage basins, and the receiving frame is also made entirely of stainless steel. Please feel free to consult us regarding concrete precast products or drainage basins with special dimensions. *For more details, please refer to the PDF materials or feel free to contact us.

• Exterior and paving materials <General>

We would like to introduce the "Decorative Cover" (made of stainless steel for drainage ditches) handled by Okagreat Co., Ltd. This stainless steel "Decorative Cover" is designed to be filled with interlocking blocks in private sites, commercial facilities, and other exterior construction projects, blending smartly into the landscape. Being made of stainless steel, it has high corrosion resistance and is very sleek and attractive. The frame for the on-site drainage ditch is also made entirely of stainless steel. We can provide stainless steel frames that can be fixed simply by tightening bolts to the U-shaped concrete secondary products for the decorative cover. *For more details, please refer to the PDF document or feel free to contact us.

• Exterior and paving materials <General>

We would like to introduce the noise prevention 'L-shaped rubber' for U-shaped channel grating handled by Okagreat Co., Ltd. We often hear about the issue of U-shaped channel grating rattling, making noises like "clack, clack" and "rattle, rattle," and the desire to address these rattling sounds. By simply applying this 'L-shaped rubber,' you can reduce the unpleasant rattling noise. (If the rattling noise does not subside even after applying the L-shaped rubber, other issues may need to be considered.) To accommodate the sizes of the flange part (end angle) of U-shaped channel grating, we offer three sizes: large, medium, and small. This 'L-shaped rubber' can be applied to U-shaped channel grating (with two flanges) for concrete secondary products such as U-150, U-180, U-240, U-300, U-360, U-400, U-450, U-600, and for special channel widths in site-cast side ditches. Please feel free to consult us when you need our services.

• Exterior and paving materials <General>

We would like to introduce the "Crocodile Mouth Connecting Clip" in large, medium, and small sizes, handled by Okagreat Co., Ltd. This clip connects the main components (main bars) of the grating by inserting it from the claw side of the crocodile mouth connecting clip into the grating body, allowing the twist bar to pass through, and securely clamping it with a strong spring mouth, thus connecting one grating to another. There are various types of gratings that can be connected, including U-shaped channel gratings, site-cast side channel (drop-in type) gratings, and longitudinal gratings for concrete secondary products. There are three sizes available: large, medium, and small. - Large size: For main bars with a height of h 50 to 100 mm - Medium size: For main bars with a height of h 25 to 44 mm - Small size: For main bars with a height of h 19, 25 mm, etc. (flat bar 3.0t) The clip is used for various applications, including theft prevention for gratings, prevention of bouncing, and reduction of rattling. Please feel free to consult with us when you need our services.

• Exterior and paving materials <General>

We would like to introduce the "Special Hook Fitting for Fine Grating" handled by Okagreat Co., Ltd. This "Special Hook Fitting for Fine Grating" is useful when you want to lift grating to perform maintenance or cleaning on site-cast drainage pits, site-cast gutters, ditches, and concrete secondary products such as pits and gutters. Of course, it can also lift standard grating. However, it is quite difficult to lift fine grating without any tools. With this "Special Hook Fitting for Fine Grating," you can hold one in each hand, allowing you to lift it steadily with both hands. If there are two people, you can lift it steadily using four of these fittings. It is effective in various situations, such as community cleaning activities, gutter cleaning before heavy rain seasons, and daily cleaning of on-site gutters. Moreover, it has a simple structure, is lightweight, and economical. We have heard voices saying, "I used to tie ropes or wires to lift grating." This product solves that problem. *For more details, please refer to the PDF document or feel free to contact us.

• Exterior and paving materials <General>

We would like to introduce the "OG Super High Tensile High Strength Stainless Steel Grating New Model" and "U-shaped Drainage Type" handled by Okagreat Co., Ltd. We have improved the manufacturing method of the OG Super High Tensile High Strength Stainless Steel Grating! It demonstrates high durability against loads in the "twisting" direction! The new model features a combination of the uneven parts of two components that are joined together. This structurally enhances strength and achieves even higher load-bearing performance. It also exhibits high durability against "twisting" loads caused by "vehicle tires," which has been a weakness of conventional products. Additionally, the "R" shape of the flange allows rainwater to be quickly directed into the side ditch, improving drainage performance. Please feel free to consult with us when you need assistance.

• Exterior and paving materials <General>

We would like to introduce the "Snow Melt Trench Grating" handled by Okagreat Co., Ltd. The "Snow Melt Trench Grating" is an essential civil engineering and construction material in snow-prone areas. It features a safe, smart, and functional design. "If the specifications vary at different offices, sites, and properties, and it's hard to understand..." "It seems quite different from the usual grating..." If you have any concerns like these, please feel free to consult with us.

• Exterior and paving materials <General>

We would like to introduce the "Screen Grating" handled by Okagreat Co., Ltd. We have been hearing more news about ocean pollution caused by plastic waste. Various industries are making efforts to reduce plastic waste, such as charging for plastic bags and switching to paper straws. This "Screen Grating" integrates the grating and the debris screen, which were traditionally installed separately, achieving significant cost savings. It is installed at the edge of the ditch to prevent debris from flowing into the interior, and when the screen is not in use, it can be easily stored in the grating body with a one-touch mechanism. Removing accumulated debris is also simple. It is suitable for U-shaped ditches for concrete secondary products and for longitudinal raised grating, among others. (The main image shows the "U-shaped ditch type.") We offer options for U-180, U-240, U-300, and other special or custom dimensions for concrete secondary products, so please feel free to consult with us. If you have any inquiries, please do not hesitate to contact us.

• Exterior and paving materials <General>

We would like to introduce the "Decorative Covers" (made of stainless steel and galvanized steel) handled by Okagreat Co., Ltd. These "Decorative Covers" are designed to blend seamlessly into the landscape when filling interlocking blocks, tiles, and other materials in private sites, commercial facilities, and various exterior construction projects. We offer options in stainless steel and galvanized steel finishes, allowing you to choose based on your needs and budget. Our lineup includes a wide variety for applications such as catch basins and gutters, suitable for various uses including on-site gutters and catch basins. *For more details, please refer to the PDF document or feel free to contact us.*

• Exterior and paving materials <General>