List of Civil Engineering Materials products
- classification：Civil Engineering Materials
2206～2250 item / All 10028 items
It can be quickly implemented in existing facilities such as outdoor areas and lockers where securing power is difficult. Rental options help reduce the costs of implementation and operation.
- Attendance management system
Direct 1-to-1 outbound support that reaches the DX departments of major corporations!
- Other Software
We offer various types of plastic extrusions. Please consult us for mold production, prototyping, and mass production. We also accept orders for our products.
- Tunnel Materials
2025 Good Design Award" winner! Mitsuba Drain has also been selected as "My Chosen Item.
The announcement of the 2025 Good Design Award (organized by the Japan Design Promotion Association) was made on October 15, 2025. This time, Nihon Doren Co., Ltd. received two Good Design Awards. Additionally, the focused drainage pipe "Mitsuba Doren" was selected for the special selection "My Chosen Item" by the Good Design Award judging committee. It has been highly evaluated as an excellent design that merges traditional wisdom with modern technology.
We respond to our customers' needs with skilled techniques such as plastic bending, adhesive processing, and welding.
- Tunnel Materials
2025 Good Design Award" winner! Mitsuba Drain has also been selected as "My Chosen Item.
The announcement of the 2025 Good Design Award (organized by the Japan Design Promotion Association) was made on October 15, 2025. This time, Nihon Doren Co., Ltd. received two Good Design Awards. Additionally, the focused drainage pipe "Mitsuba Doren" was selected for the special selection "My Chosen Item" by the Good Design Award judging committee. It has been highly evaluated as an excellent design that merges traditional wisdom with modern technology.
Can accommodate various terrains and structures! Leak-proof gutters made of non-combustible materials.
- Tunnel Materials
2025 Good Design Award" winner! Mitsuba Drain has also been selected as "My Chosen Item.
The announcement of the 2025 Good Design Award (organized by the Japan Design Promotion Association) was made on October 15, 2025. This time, Nihon Doren Co., Ltd. received two Good Design Awards. Additionally, the focused drainage pipe "Mitsuba Doren" was selected for the special selection "My Chosen Item" by the Good Design Award judging committee. It has been highly evaluated as an excellent design that merges traditional wisdom with modern technology.
Improving the durability and workability of leak-proof gutters! Soft P.V.C. gutters made from flexible materials.
- Tunnel Materials
2025 Good Design Award" winner! Mitsuba Drain has also been selected as "My Chosen Item.
The announcement of the 2025 Good Design Award (organized by the Japan Design Promotion Association) was made on October 15, 2025. This time, Nihon Doren Co., Ltd. received two Good Design Awards. Additionally, the focused drainage pipe "Mitsuba Doren" was selected for the special selection "My Chosen Item" by the Good Design Award judging committee. It has been highly evaluated as an excellent design that merges traditional wisdom with modern technology.
Introducing the Mitsuba Drain, a buried pipe that plays an active role on the sun-dried floor of the water purification plant!
- Piping materials (copper pipes, cast iron pipes)
2025 Good Design Award" winner! Mitsuba Drain has also been selected as "My Chosen Item.
The announcement of the 2025 Good Design Award (organized by the Japan Design Promotion Association) was made on October 15, 2025. This time, Nihon Doren Co., Ltd. received two Good Design Awards. Additionally, the focused drainage pipe "Mitsuba Doren" was selected for the special selection "My Chosen Item" by the Good Design Award judging committee. It has been highly evaluated as an excellent design that merges traditional wisdom with modern technology.
Corner-type low-density expanded polyethylene foam joint material!
- Joint material
The most weather-resistant reinforced glass curved mirror, with a mirror surface that has high affinity with water, allowing rainwater to wash away dirt, keeping it clean for a long time and making ma...
- Road signs and road accessories
For connecting two or more tanks for suction and discharge of bathhouse and pool water.
- Water and sewerage pipe fittings
We have a variety of nozzles available to meet your usage conditions.
- Water and sewerage pipe fittings
Highly durable jet nozzles! Single nozzle, double nozzle, triple nozzle.
- Water and sewerage pipe fittings
A dust collector that captures thread scraps, hair, leaves, and garbage before the pump!
- Water and sewerage pipe fittings
Foot pedal for handwashing station 501-283-C
- Water and sewerage pipe fittings
Foot pedal for handwashing station 5001-2-C
- Water and sewerage pipe fittings
Foot pedal for hand washing station 502-283-C
- Water and sewerage pipe fittings
Foot pedal for handwashing station 571-283-C
- Water and sewerage pipe fittings
It can be changed to a single faucet specification for use with either water supply or hot water supply.
- Water and sewerage pipe fittings
Foot pedal for handwashing sink 574-2-C
- Water and sewerage pipe fittings
Foot pedal for handwashing station 810-283-C
- Water and sewerage pipe fittings
Foot pedal for handwashing station 501-2-C
- Water and sewerage pipe fittings
Foot pedal for handwashing station 801-2-C
- Water and sewerage pipe fittings
Foot pedal for hand wash station 2502-283-C
- Water and sewerage pipe fittings
Foot pedal for hand washer 2521-283-C
- Water and sewerage pipe fittings
Foot pedal for handwashing station 810-2-C
- Water and sewerage pipe fittings
The material consists of a base fabric made of 100% polyester, and the coating resin is polyvinyl chloride!
- Civil Engineering Sheet
For individuals and companies considering flood prevention measures! This is a system that allows you to introduce flood barriers at a great price.
- Water stop
Widely usable for various construction grounding electrodes! Excellent in maintaining long-term grounding resistance reduction effects.
- Concrete Retaining Wall
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Neutralization inhibition, demonstrating effects against salt damage and freeze damage! A revolutionary tool for civil engineering and construction sites.
- Civil Engineering Sheet
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Just stick it to the formwork during casting! Achieve longer lifespan while also realizing labor savings, shortened construction time, and cost reduction.
- Civil Engineering Sheet
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Achieve labor reduction, shortened construction periods, and cost savings! Improve the durability targets of civil engineering and buildings.
- Civil Engineering Sheet
Finish the concrete surface in an optimal condition! Angle adjustment of the float pan is possible!
- Paving Materials
A concrete finisher that is easy to handle, achieving reduced construction time and improved construction quality!
- Paving Materials
We offer custom valve manufacturing equipped with various optional features centered around ball valves.
- Piping materials (copper pipes, cast iron pipes)
Are you struggling with rainwater drainage? HaniHole is a rainwater infiltration product designed to efficiently retain rainwater and return it underground!
- Water and sewerage pipe fittings
Are you struggling with rainwater drainage issues? Our Honey Hole is a rainwater infiltration product designed to effectively retain and return rainwater to the underground!
- Water and sewerage pipe fittings
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.
- Trees
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 Ten 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.
[BYK New Product] Inorganic-based powder for construction and civil engineering, a highly effective wetting dispersant DISPERBYK-2290/-2291.
- Civil Engineering Sheet
For general drainage ditches such as on-site casting. Additionally, for drop-in type grates, drainage covers, and drainage covers with special dimensions.
- 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.
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."
- Slope protection material
A drainage channel formed along the curb! Steel galvanized finish. A slide mechanism enables an anti-flip structure! Grating with a trough-type receiving frame!
- Drainage material
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."
- Road facilities
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 Ten 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.
A solid feeling at your feet. The evolving shape of the grating, "Safety Walker."
- 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.
Drain cover cap for sealing the handle holes of concrete drain covers! It prevents coins, keys, and other items from falling into the handle holes of concrete drain covers!
- Concrete Retaining Wall