We have renewed our homepage. A variety of the latest grating products are now featured. (Okagrate Co., Ltd.)

Also for cable and wiring pits in solar power plants. No need for anchor installation, easy construction with a fixed attachment method. For theft prevention.

The "OG Lock Pit" is a product that does not require post-installed anchors for concrete products and features a fixing method that does not protrude from the surface of the lid. By simply tightening the OG lock bolts at two points, it can be securely fixed in close contact with the drainage channel. Unlike anchor installations, there are no bolts or nuts protruding from the surface of the lid, which does not obstruct pedestrian traffic. Additionally, it can also be used as a pit cover for cable and wiring in solar power plants, mega-solar installations, and solar farms. 【Features】 ■ No need for anchor installation ■ Securely fixed in close contact with the drainage channel by tightening the OG lock bolts at two points ■ Does not obstruct pedestrian traffic ■ Effective in preventing rattling noise *For more details, please refer to the PDF document or feel free to contact us.

• Biomass power generation facilities

Effective in preventing rattling noise from U-shaped drainage grates. Fixed securely to prevent theft. No need for mounting fixtures on concrete precast products. Easy to install.

We would like to introduce the OG Lock series 'OG Lock U' handled by Okagreat Co., Ltd. 'OG Lock U' is a product that allows for the secure attachment of U-shaped channel grating without the need for fixtures on concrete products. It can be securely fixed to the channel simply by tightening the OG Lock bolts in two places, without any construction required for the side ditch. Removal is also a simple task of just loosening the bolts, which does not hinder the cleaning of the side ditch. 【Features】 ■ Securely fixes to the side ditch by tightening the OG Lock bolts in two places ■ Easy removal by simply loosening the bolts ■ Effective for theft prevention of grating and reducing rattling noise *For more details, please refer to the PDF document or feel free to contact us.

• Power and Energy Equipment

The "Safety Walker" installed on the premises of a famous leasing company in Okayama Prefecture to suppress falling debris such as fallen leaves. A grating that is less likely to clog.

Okagreat Co., Ltd.'s "Safety Walker G·D" and "Safety Walker L·D" are designed to be less prone to clogging from small stones and debris compared to traditional grating. They also suppress falling leaves and other debris, maintaining hygiene, enhancing appearance, and being resistant to damage due to their surface material structure, making them an "evolved grating." They are suitable not only as site-cast grating but also for various drop-in types, bolt-fixed types, raised types, and other special-sized covers (please consult us for concrete precast products, etc.). Due to their structural design, the surface is made of material, making them strong against twisting and impacts from vehicle tires, ensuring that the grating is difficult to break. They are also ideal for preventing grating damage. Additionally, the design minimizes the accumulation of stones and debris in the grating itself, preserving the landscape. Multiple slit holes are made in the surface "striped steel plate" or "patterned steel plate," balancing drainage and strength. Furthermore, it has been reported that the slip resistance exceeds that of traditional types. You can experience the difference from traditional grating with issues such as "leaves falling into the gutter making cleaning difficult..." or "the grating frequently breaking near the entrance..."

• Trees

"Safety Walker," a flat-topped and durable grating installed at golf course companies in the Tokyo Stock Exchange Prime market. It is also resistant to clogging.

Okagreat Co., Ltd.'s "Safety Walker G·D" and "Safety Walker L·D" are "evolved grating" products that are less prone to clogging from small stones and debris compared to conventional 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 scenarios. These products can be used not only as site-cast grating but also in various drop-in types, bolt-fixed types, raised types, and other special dimension covers (please consult us for concrete secondary products, etc.). Due to their structure, the surface is made of material that is strong against twisting and impact from vehicle tires, making the grating difficult to break. They are also ideal for preventing grating damage. Additionally, the structure makes it difficult for stones and debris to clog the grating itself, preserving the aesthetic appeal. Multiple slit holes are made in the "striped steel plate" or "patterned steel plate" on the surface to balance drainage and strength. It has also been reported that the slip resistance exceeds that of conventional types. You can clearly notice the difference when passing through areas where grating frequently breaks, such as near entrances, especially when using golf carts. You will experience the difference compared to conventional grating.

• Other earthworks, foundation works, and exterior floors

The "Safety Walker" installed on the premises of major companies in the Tokyo Stock Exchange Prime segment to suppress falling debris such as fallen leaves. A grating that is less prone to clogging.

Okagreat Co., Ltd.'s "Safety Walker G·D" and "Safety Walker L·D" are an evolved type of grating that is less prone to clogging from small stones and debris compared to conventional grating. They also suppress falling objects like leaves, maintaining hygiene at all times, have an attractive appearance, and are resistant to damage due to their surface material structure. These gratings are suitable not only for on-site casting but also for various types such as drop-in, bolt-fixed, raised types, and other special-sized covers (please consult us for concrete secondary products, etc.). Due to their structural design, the surface is made of a material structure that is strong against twisting and impacts from vehicle tires, making them difficult to break. They are also ideal for preventing grating damage. Furthermore, the design minimizes the accumulation of stones and debris on the grating itself, preserving the landscape. Multiple slit holes are made in the "striped steel plate" or "patterned steel plate" on the surface to balance drainage and strength. It has also been reported that the slip resistance exceeds that of conventional types. You can experience the differences from conventional grating, such as frequent damage near entrances or the difficulty of cleaning due to leaves falling into the gutters.

• lift

The "Safety Walker" installed in a sake brewery that is a famous pilgrimage site for anime. It is designed to be less prone to clogging, with a flat top surface that allows for easy passage with carts.

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. They can be useful in various scenes. They are suitable not only as site-cast gratings but also for various types such as drop-in, bolt-fixed, raised types, and other special dimension covers (please consult us for concrete precast products, etc.). Due to their structure, the surface is made of material, making them strong against twisting and impacts from vehicle tires, making them difficult to break. They are also ideal for preventing grating damage. Additionally, because of their structure, the gratings themselves are less likely to get clogged with stones and debris, preserving the landscape. Multiple slit holes are made in the "striped steel plate" or "patterned steel plate" on the surface to balance drainage and strength. Furthermore, the "anti-slip effect" has been reported to exceed that of conventional types. If you have issues such as cart wheels getting caught and making it difficult to pass, or frequent grating damage near entrances, please consider these products. *For more details, please refer to the PDF materials or feel free to contact us.

• container

A grating called "Safety Walker," known for its flat top surface and durable panel structure, installed at a famous ramen shop as a measure against large vehicle entrance and exit.

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 scenarios. In addition to being suitable 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 precast products, etc.). Due to its structural design, the surface material structure makes it 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, the design prevents stones and debris from clogging the grating itself, preserving the landscape. Multiple slit holes are made in the "striped steel plate" or "patterned steel plate" on the surface to balance drainage and strength. It has also been reported that its anti-slip effect surpasses that of conventional types. You will likely realize that the grating frequently breaks near entrances is different from conventional types. *For more details, please refer to the PDF materials or feel free to contact us.*

• shopping cart

A drainage channel formed along the curb! Finished with galvanized steel. The sliding mechanism enables a splash prevention structure! Grating with a trough-type receiving frame!

We would like to introduce "Super Drain," handled by Okagreat Co., Ltd. It forms a drainage channel along the curb, draining water from above and infiltrating water from permeable asphalt. A slim and smart slit grating. With a T-shaped receiving frame, it has a cross-sectional shape (D-type frame) that minimizes debris accumulation. It features a slide-fix mechanism to prevent lifting. Both the cover and receiving frame are made of steel with a hot-dip galvanized finish. 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.

• Shopping district, entrance area, eaves

Laser processing and hot-dip galvanizing finish for striped steel plates! For tunnel inspection road installation work, please let us know your requests for "products like this."

We would like to introduce the processed products of striped steel plates handled by Okagreat Co., Ltd. We can accommodate various processing and surface treatments, including laser processing machines, shearing, press bending, welding, hot-dip galvanizing finishing, and rust prevention painting. Our company continues to pursue convenience in the environments and locations where our products are used, striving to provide better proposals and products. We have delivered numerous products to sites such as the Ministry of Land, Infrastructure, Transport and Tourism, prefectures, prefectural civil engineering offices, cities, NEXCO, water resources, disaster recovery sites, and agricultural and forestry-related sites. Please let us assist you in solving your problems. Additionally, we can process other steel materials (such as H-beams, C-shaped steel, and equal angle steel) and can also manufacture receiving frames and brackets for striped steel plate lids, as well as support frames. Please feel free to consult us regarding galvanizing certificates (such as HDZT-77), shipping certificates, mill sheets, and steel material certificates. 【Features】 ■ Various processing and surface treatments, including laser processing machines, shearing, press bending, welding, hot-dip galvanizing finishing, and rust prevention painting ■ Accommodations for various treatments tailored to the construction environment *For more details, please refer to the PDF materials or feel free to contact us. Having drawings would be helpful.

• Road facilities

"FRP grating" is a multipurpose building material that excels in lightweight, high strength, corrosion resistance, weather resistance, and insulation properties. It has various applications such as flooring, wall materials, and light-transmitting materials.

We would like to introduce the "FRP Grating" handled by Okagreat Co., Ltd. The "FRP Grating" is a versatile building material that excels in lightweight, high strength, corrosion resistance, weather resistance, and insulation properties. It can be used for various applications such as flooring, wall materials, and light transmission materials. FRP stands for "Fiber Reinforced Plastic," which is plastic reinforced with glass fibers. Due to the characteristics of FRP, it is used as components and materials in various fields such as shipping, automotive, aviation, and construction. By forming FRP into a "grating" shape, it can be used for a variety of purposes. *For more details, please refer to the PDF document or feel free to contact us.

• Other lighting fixtures

"Floor grating for flooring and stair use." For flooring in plant construction work. Bar heights available are h19, h25, h32, h38, and h44.

We would like to introduce the steel grating products handled by Okagreat Co., Ltd., specifically the "Floor Grating" and "Stair Grating." (For use in plant and factory construction, power plants, waste treatment facilities, shipyards, and walkways for ships, listed on the Tokyo Stock Exchange Prime and First Section.) Floor grating and stair grating (Steyatrade, Steatrade, Steyattrade) are essential for flooring materials in chemical plants, oil refineries, steel mills, shipyards, and factories. We offer various bar heights: h19, h25, h32, h38, and h44. Custom notching and toe plate installation can be done according to the drawings, and anti-slip nosing plates can also be installed for stair grating. For coastal salt damage prevention, we provide a standard hot-dip galvanized finish, and additionally, we offer "SG plating" (hot-dip galvanized aluminum alloy plating - Super Galva) as an extra option. We also provide phosphating treatment, Kenbo zinc, special painting treatments, thermal spraying, and more. *For more details, please refer to the PDF materials or feel free to contact us.

• Thermal power generation

New model of stainless steel grating "Fine Grate" has arrived, demonstrating high durability against loads in the "twisting" direction! OG Super High Tensile Strength.

We would like to introduce the new model "OG Super High Tensile High Strength Stainless Steel Grating" handled by Okagreat Co., Ltd., specifically the "Fine Grate" (U-shaped drain type). This product has won the "2024 Good Design Award." It is made from NSSC low-alloy type duplex stainless steel, which boasts about twice the strength of SUS304 stainless steel. 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 and joins them together. This structurally enhances strength and achieves even higher load-bearing performance. It also demonstrates high durability against twisting loads caused by "vehicle tires," which has been a challenge for conventional products. The "R" shape of the flange allows rainwater to be quickly directed into the side ditch, enhancing drainage performance. Please feel free to consult us when you need assistance. For more details, please refer to the PDF document or feel free to contact us.

• Harbor Construction

New model! OG Super High Tensile High Strength SUS Fine Grating 'Fine Great'! Exhibits high durability performance even under torsional loads!

We would like to introduce the new model of OG Super High Tensile High Strength Stainless Steel Fine Grating, 'Fine Grate (Fine Pitch 15)' (U-shaped drain type), handled by Okagreat Co., Ltd. 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 and joins them 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. The "R" shape of the flange allows rainwater to be quickly directed into the side ditch, enhancing drainage performance. Some of you may have experienced stainless steel grating failing due to loads from "vehicle tires" causing it to become "damaged in a scattered state." This product addresses such issues through the new manufacturing method. *For more details, please refer to the PDF document or feel free to contact us. If you have any inquiries, please do not hesitate to consult with us.

• Commercial kitchen

What do the members of the back office department consider when choosing or replacing a system? If the same product is handled by both a "manufacturer" and a "distributor," how do you feel about it? "Distributor"? Isn't it cheaper to buy directly from the manufacturer? It's obvious that receiving direct service is better, right? ...Is that really the case? In the materials we are releasing this time, we will explain the benefits of "introducing a distributor." Here’s a preview of the materials: 【If you’re going to choose, you should leverage the power of a distributor that handles the ○○ system!】 【Make the distributor your ○○○○○○○ and use them to the fullest!】 Along with these points, we are offering a "Distributor Evaluation Checklist" that will be your strong ally, free of charge! Please make good use of it.

A new dedicated end cover that firmly protects the ends of the channel slit (N11/N112) has arrived! Just by installing it, you can prevent injuries and snags, significantly improving safety after construction. Furthermore, the finish is neat and beautiful. We offer three colors: chrome, white, and black.

Nitto Kousakusho Co., Ltd. (Osaka) is a comprehensive manufacturing company that supports production through "jig expertise × precision machining." We are a manufacturer of Wankel-type rotary engines (RE). Our Wankel-type RE faithfully reproduces the basic structure of Dr. Wankel's design. Nitto Kousakusho Co., Ltd. (Osaka) is pleased to announce the start of special order production and sales of the "80cc RE for gasoline" that we have been developing as a prototype, named "NRG-80." [See brochure] This product is a compact 80cc RE developed utilizing the precision machining technology and unique know-how that we have cultivated over many years. It is expected to be widely used in civilian applications as a power source for generators, pumps, and in the hobby sector. We will continue to respond to our customers' diverse needs and contribute to society through innovative manufacturing. You can watch the operation video at the following address: https://www.youtube.com/watch?v=mVCfVFYMrGU #RotaryEngine #HydrogenRotaryEngine #NittoMFG #ToolSales

We are pleased to announce that our "Film Fall Water Performance (Line Waterfall)" has been adopted for the "Belgium Pavilion" at Expo 2025 Osaka-Kansai, and it will be operational and on display every day during the event. The Belgium Pavilion has chosen "water" as one of its themes, and our water feature technology has been incorporated as part of its symbolic presentation. ■ Overview Name: Belgium Pavilion (Expo 2025 Osaka-Kansai) Duration: Ongoing until October 13, 2025 (Monday) Venue: Yumeshima, Osaka Official website: https://www.expo2025.or.jp/ When you visit the expo, please make sure to stop by the Belgium Pavilion and experience the unique world created by "water."

【Period: Ongoing until October 31, 2025】 For orders of 10 or more: Dry T-shirt 1 piece @1,800 yen (tax included) Dry Polo shirt 1 piece @2,300 yen (tax included) (Includes garment and one print location) For sizes 3L and above, an additional 550 yen An additional 550 yen for each additional print location Design and data production fees are required separately. (No fee if submitting complete data) We accept orders for various purposes such as events, teams, goods, souvenirs, and gifts, from one piece to mass production. We also have many other garments not listed. Please feel free to inquire.