List of Road, bridge and tunnel materials products

Since its birth over 60 years ago, the locking nut "U-NUT" has continued to evolve in its locking performance, durability, and vibration resistance, backed by a wealth of trust and achievements.

• Tunnel Materials

Eco heat treatment

• Snow melting equipment

This booklet explains the causes of bolt loosening and serves as a guide to understanding proper fastening methods.

• Road signs and road accessories

This is a grating that reduces the risk of caster (wheel) entrapment and slipping on rainy days.

• Grating

Prevent collisions with the door entrance and accidents caused by diagonal entry! Protective fence for automatic doors.

• Protective fence

This is a drainage cover plate made using PET fiber reinforced cement.

• Gutters and U-shaped gutters

Open the lid from today.

• Gutters and U-shaped gutters

GRC partition board

• Paving Materials

Ideal for converting side ditches into underground channels! Thin plates used as embedded forms for concrete covers [also suitable for partial repairs].

• Gutters and U-shaped gutters

Can seal large gaps! Pressure management allows for adjustment of sealing surface pressure.

• Tunnel Materials

Examples of introducing LED evacuation signs that are useful for developing disaster prevention infrastructure to encourage evacuation actions!

• Road signs and road accessories

Unique solar power generation system! Case study of cordless illuminated evacuation signs.

• Road signs and road accessories

Maintaining visibility even during power outages! Case study on the introduction of LED evacuation signs with built-in solar panels.

• Road signs and road accessories

Permeability coefficient of 1.3 cm/s, with a void ratio of 40% for excellent drainage effect! Installing it reduces the risk of injury from falls.

• Grating

A mobile concrete production plant capable of manufacturing and supplying concrete on-site! Contributing to labor-saving and quality improvement at the site!

• Paving Materials

【In stock domestically】Highly popular! Firmly protects the pillars. Adjustable size from 150 to 375mm.

• Protective fence

To interchanges and smart interchanges! Efficient and low-cost snow melting with far-infrared rays.

• Snow melting equipment
• Exterior snow melting equipment

Easy setup! Prevents disruptions to ETC lane equipment caused by snowfall.

• Snow melting equipment
• Exterior snow melting equipment

For ensuring safety! It is very effective as a snow prevention measure at tunnel entrances.

• Snow melting equipment
• Exterior snow melting equipment

For snow accumulation and freezing prevention! It can be installed in a short period without road construction.

• Snow melting equipment
• Exterior snow melting equipment

For cost reduction! Snow melting through autonomous driving is possible, preventing the premature shutdown of ETC equipment.

• Snow melting equipment
• Exterior snow melting equipment

Free gift of a construction example collection! Easy-to-install and vibrant paving composite blocks.

• Secondary paving products

Construction is super easy! Can be used as an alternative to concrete blocks. A stylish, authentic eco product certified by US LEED.

• Secondary paving products

Examples of construction are being distributed! Paving blocks that can be easily installed at about one-third the weight of concrete.

• Secondary paving products

There is a construction video! Paving blocks that can be easily installed at about one-third the weight of concrete.

• Secondary paving products

【Improved Workability】Over 50% weight reduction compared to steel retaining materials! Contributes to shortening construction periods at sites requiring heavy temporary structures. Also features flexi...

• Bridge Materials

Supports small lots! Can accommodate widths from a minimum of 0.18mm to a maximum of 10m.

• Protective fence
• Fences, screens, and partitions

Easy to install and repair! We offer various patterns to suit your installation situation.

• Protective fence
• Fences, screens, and partitions

Asphalt made from wood! Its durability is equivalent to conventional paving materials, and it also prevents heat islands! Technical materials and case studies are currently being offered.

• Paving Materials
• Pavement construction

A pictogram sign with high brightness reflective phosphorescent prism that is active in all situations.

• Road signs and road accessories

【Safety Measures】Greatly contributes to improving safety in factories and warehouses! Protects buildings and equipment from impacts occurring at low levels.

• Protective fence

This is a cover that can protect cables up to a maximum of 60φ.

• Road facilities

It is a very lightweight and versatile resin board.

• Road facilities

This is a rubber ramp that can support loads of up to 10 tons.

• Road facilities

A temporary tactile mat that integrates tactile blocks and rubber mats.

• Road facilities

A rockfall protection fence that can be easily installed on the top of existing structures! No reinforcement or elevation of the structure is necessary during installation! For rockfall measures, use ...

• Protective fence