List of Road, bridge and tunnel materials products
- classification：Road, bridge and tunnel materials
361～405 item / All 3093 items
For JIS side ditches. Also for various VS (free slope) types, prefectural types, Ministry of Land, Infrastructure, Transport and Tourism types, and former Ministry of Construction types, etc.
- Grating
The new "2024-2025 Comprehensive Catalog" has been released! New grating products are included!
The new "2024-2025 Comprehensive Catalog" from Okagreat Co., Ltd. has been released! It features many original products and grating, including "Safety Walker" and "OG Lock U"! New types of grating such as "Safety Walker," "OG Lock U," "Premium Expand," and "Neo Slit" OG Super High-Tensile High-Strength Stainless Steel Grating "Fine Grate" are included. Many original products and gratings are featured! If you're looking for something a bit different from conventional grating, something you've never seen before, or grating that better matches the landscape, you might find it in this catalog. High heels and canes won't get stuck. Trash and small stones won't clog. Slip-resistant effects are expected. Theft prevention. Wobble prevention, tires of road bikes and sports-type bicycles won't fit, and wheels of carts, carry cases, and hand trucks won't get stuck, among other issues. This catalog addresses your grating concerns. If you would like a copy of the new "2024-2025 Comprehensive Catalog," please feel free to contact us.
For use with on-site poured catch basins. Additionally, for drop-in type manhole covers, manhole covers with special dimensions, sumps, and various types of basins.
- Grating
The new "2024-2025 Comprehensive Catalog" has been released! New grating products included!
The new "2024-2025 Comprehensive Catalog" from Okagreat Co., Ltd. has been released! It features many original products and grating, including "Safety Walker" and "OG Lock U"! New types of grating such as "Safety Walker," "OG Lock U," "Premium Expand," and "Neo Slit" OG Super High Tensile High Strength Stainless Steel Grating "Fine Grate" are included. Many original products and gratings are featured! If you're looking for something a bit different from conventional grating, something you've never seen before, or grating that better matches the landscape, you might find it in this catalog. High heels and canes won't get stuck. Trash and small stones won't clog. Slip-resistant effects are expected. Theft prevention. Prevents wobbling, and tires from road bikes or sports-type bicycles won't fit, nor will the wheels of carts, carry cases, or hand trucks, and so on. This catalog addresses your grating concerns. If you would like a copy of the new "2024-2025 Comprehensive Catalog," please feel free to contact us.
For use with on-site poured catch basins. Additionally, for drop-in type manhole covers, special dimension manhole covers and sumps, and various types of basins.
- Grating
The new "2024-2025 Comprehensive Catalog" has been released! New grating products included!
The new "2024-2025 Comprehensive Catalog" from Okagreat Co., Ltd. has been released! It features many original products and grating, including "Safety Walker" and "OG Lock U"! New types of grating such as "Safety Walker," "OG Lock U," "Premium Expand," and "Neo Slit" OG Super High Tensile High Strength Stainless Steel Grating "Fine Grate" are included. Many original products and gratings are featured! If you're looking for something a bit different from conventional grating, something you've never seen before, or grating that better matches the landscape, you might find it in this catalog. High heels and canes won't get stuck. Trash and small stones won't clog. Slip-resistant effects are expected. Theft prevention. Prevents wobbling, and tires from road bikes or sports-type bicycles won't fit, nor will the wheels of carts, carry cases, or hand trucks, and so on. This catalog addresses your grating concerns. If you would like a copy of the new "2024-2025 Comprehensive Catalog," please feel free to contact us.
Introducing photos of construction examples! Chemical composition and usage precautions are also included as stainless steel materials.
- Grating
We have a wide variety of sizes and types available! A total of 7 types in our lineup.
- Grating
Not only the features, but also details such as the size of the slit lid will be introduced with enlarged photos!
- Gutters and U-shaped gutters
This is a new grating that uses domestically sourced thinned wood, small-diameter wood, and plastic waste for the main materials, matching the surrounding nature unlike steel grating.
- Grating
Form a drainage channel along the curb! Grating with a gutter-shaped frame! Easy and simple installation!
- Grating
It is a building material that is gentle on people, safe, and excels in design.
- Grating
"Rainbow Grating" with selectable colors for the filler.
- Grating
"Rainbow Grating" with selectable colors for the filler.
- Grating
The grating is galvanized, and the frame is painted black! There are a total of 5 types of drain holes.
- Grating
"Rainbow Grating" with customizable filler colors.
- Grating
"Rainbow Grating" with selectable colors for the filler.
- Grating
A new form of grating for flood control measures. Improved rainwater absorption performance with a slider plate!
- Grating
Non-slip. Non-fall. Non-jam. A refined design with high drainage performance and barrier-free grating.
- Grating
Non-slip. Non-falling. Non-jamming. A sophisticated design with high drainage capability and barrier-free grating.
- Grating
We have renewed our homepage. A variety of the latest grating products are now featured. (Okagrate Co., Ltd.)
We have renewed our homepage. A variety of the latest grating products are now featured. Awarded the Good Design Award, the new type of grating "Safety Walker" High-strength OG Super High-Tensile Grating made of stainless steel using a new manufacturing method "Fine Grate" Easy-to-fix grating for U-shaped ditches and striped steel plate covers "OG Lock Series" Barrier-free grating "Neo Slit" Pursuing slip resistance, safety, and design "Premium Expand" Wooden grating made from recycled thinning materials "Eco Wood Grating" Environmentally friendly grating using recycled plastic chips "Eco Pla Grating" And many more are featured.
Non-slip. Non-fall. Non-trapping. A refined design with high drainage capability and barrier-free grating.
- Grating
We have renewed our homepage. A variety of the latest grating products are now featured. (Okagrate Co., Ltd.)
We have renewed our homepage. A variety of the latest grating products are now featured. Awarded the Good Design Award, the new type of grating "Safety Walker" High-strength OG Super High-Tensile Grating made of stainless steel using a new manufacturing method "Fine Grate" Easy-to-fix grating for U-shaped ditches and striped steel plate covers "OG Lock Series" Barrier-free grating "Neo Slit" Pursuing slip resistance, safety, and design "Premium Expand" Wooden grating made from recycled thinning materials "Eco Wood Grating" Environmentally friendly grating using recycled plastic chips "Eco Pla Grating" And many more are featured.
Non-slip. Non-fall. Non-trapping. A refined design with high drainage capability and barrier-free grating.
- Grating
Non-slip. Non-fall. Non-trap. Sophisticated design and high drainage capability, barrier-free grating.
- Grating
A new form of grating that designs the landscape.
- Grating
High-strength stainless steel grating! Available in strength and thinness (grating height) in plain type and non-slip type!
- Grating
We have been awarded the "Good Design Award" for the 2024 fiscal year. Featured in the 2024 new catalog is the "New Model SUS Grating 'Fine Grate'." Achieving high strength and high durability with a new manufacturing method!
The new model "Fine Grate" of stainless steel grating, featured in the 2024 catalog, has won the 2024 "Good Design Award." It demonstrates high durability performance against loads in the "twisting" direction! The OG Super High Tensile High Strength Stainless Steel Grating. Achieved through a manufacturing method different from conventional ones. We would like to introduce the new model "OG Super High Tensile High Strength Stainless Steel Grating" (U-shaped gutter type). The material used is 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 for bonding. This structurally enhances strength and achieves even higher load-bearing performance. It also exhibits high durability performance against "twisting" loads caused by "vehicle tires," which conventional products struggled with. The "R" shape of the flange allows rainwater to be quickly directed into the side gutter, enhancing drainage performance. Please feel free to consult us when placing an order. *For more details, please refer to the PDF document or feel free to contact us.*
High-strength stainless steel grating! Available in plain type and non-slip type with strength and thinness (grating height)!
- Grating
We have won the "Good Design Award" for the 2024 fiscal year. The new model SUS grating "Fine Grate." Achieving high strength and high durability with a new manufacturing method!
The new stainless steel grating model "Fine Grate" has won the 2024 Good Design Award. It demonstrates high durability against loads in the "twisting" direction! OG Super High Tensile High Strength Stainless Steel Grating. Achieved through a manufacturing method different from conventional ones. We would like to introduce the new model "OG Super High Tensile High Strength Stainless Steel Grating" (U-shaped drain type). The material used is NSSC low-alloy type duplex stainless steel, which boasts about twice the strength of SUS304 stainless steel. The manufacturing method of OG Super High Tensile High Strength Stainless Steel Grating has been improved! It exhibits 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 demonstrates high durability against "twisting" loads caused by "vehicle tires," which was a weakness of conventional products. The "R" shape of the flange quickly directs rainwater 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.
The strength is about twice that of SUS304! Developed with the duplex stainless steel "SUS821L1".
- Grating
We are pleased to present the 2024 edition of the 'New Catalog' featuring products that have won the 2024 Good Design Award. (New model SUS steel grating 'Fine Grate'. Achieving high strength and high durability with a new manufacturing method!)
The new model stainless steel grating "Fine Grate" has been awarded the 2024 Good Design Award. If you would like to receive the 2024 edition of the "New Catalog" featuring this product, please feel free to apply by clearly stating "Catalog Request." (Please note that there is a limited quantity available. One catalog per application.) (The new model "OG Super High Tensile High Strength Stainless Steel Grating" is achieved through a different manufacturing method. It demonstrates high durability against loads in the "twisting" direction. The "Fine Grate" (U-shaped drainage type) uses NSSC low-alloy duplex stainless steel as the material (which boasts about twice the strength of SUS304 stainless steel). Additionally, the manufacturing method of the conventional OG Super High Tensile High Strength Stainless Steel Grating has been improved to exhibit high durability against loads in the "twisting" direction. By combining and joining the uneven parts of two components, structural strength has been enhanced, achieving even higher load-bearing performance. It shows high durability against "twisting" loads caused by "vehicle tires," which has been a weakness of conventional products, and the "arc" shape of the flange quickly directs rainwater into the side ditch, improving drainage performance.) *Please feel free to apply.
The strength is about twice that of SUS304! Developed with the duplex stainless steel "SUS821L1." Strength = reducing the thickness of the grating height h!
- Grating
We have won the "Good Design Award" for the 2024 fiscal year. The new model SUS grating "Fine Grate." Achieving high strength and high durability with a new manufacturing method!
The new stainless steel grating model "Fine Grate" has won the 2024 Good Design Award. It demonstrates high durability against loads in the "twisting" direction! OG Super High Tensile High Strength Stainless Steel Grating. Achieved through a manufacturing method different from conventional ones. We would like to introduce the new model "OG Super High Tensile High Strength Stainless Steel Grating" (U-shaped drain type). The material used is NSSC low-alloy type duplex stainless steel, which boasts about twice the strength of SUS304 stainless steel. The manufacturing method of OG Super High Tensile High Strength Stainless Steel Grating has been improved! It exhibits 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 demonstrates high durability against "twisting" loads caused by "vehicle tires," which was a weakness of conventional products. The "R" shape of the flange quickly directs rainwater 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.
The strength is about twice that of SUS304! Developed with mold duplex stainless steel "SUS821L1"! U150, U180, U240, U300, and others.
- Grating
Introducing grating connection fittings clips for theft prevention and to prevent lifting! Available in a variety of sizes!
- Grating
The standard stainless steel grating! SUS304. Flat bar type with main material pitches of 30, 22, 15, 13, and 11 millimeters. The minimum gap is 7 millimeters.
- Grating
The standard stainless steel grating! SUS304. I-bar type with main member pitches of 30, 22, 15, and 13 millimeters. The minimum gap is 8 millimeters.
- Grating
We offer stainless steel, steel, and cast iron products! They excel in aesthetics, workability, and safety.
- Gutters and U-shaped gutters
Treasure limited resources! Using recycled plastic made from waste as the main material.
- Grating
Treasure limited resources! Using 100% recycled plastic made from waste as the main material.
- Grating
Treasure limited resources! Using 100% recycled plastic made from waste as the main material.
- Grating
Cherish limited resources! Using recycled plastic made from waste as the main material.
- Grating
Cherish limited resources! Using recycled plastic made from waste as the main material.
- Grating
SDGs-compliant grating "EcoPla". Cherishing limited resources! Utilizing recycled plastic made from waste as the main material!
- Grating
Eco-friendly wooden grating "Eco Wood"! Utilizing the beauty, tranquility, and warmth of wood!
- Grating
Eco-friendly wooden grating "Eco Wood"! Utilizing the beauty, tranquility, and warmth of wood!
- Grating
Environmentally friendly wooden grating "Eco Wood"! Utilizing the beauty, tranquility, and warmth of wood!
- Grating
Upgrade your "Eco Wood" grating with an original branding stamp! It can be used in parks and walking paths filled with greenery, as well as in the serene atmosphere of temples and shrines!
- Grating
Resource-circulating grating using thinned wood and small-diameter timber! Thinned wood and small-diameter timber can be replaced one by one.
- Grating
Prevent debris from flowing into the drainage pit! 10 to 20 times more corrosion resistance compared to hot-dip galvanized steel sheets.
- Gutters and U-shaped gutters
Fine molten particles are closely adhered, providing an enormous anti-slip effect in various directions! A stainless steel grating that exhibits an unprecedented non-slip effect!
- Grating
Balancing lightness and strength. Aluminum grating. Anodized coloring treatment is possible! The characteristics of aluminum can be maintained while achieving a subdued color tone.
- Grating
Catch the trash! A grating with a screen for catching garbage, the "Screen Grating," to prevent pollution in oceans and rivers!
- Grating