List of Tunnel Materials products

Contributing to fall prevention and safety measures! We provide safety and peace of mind no matter how harsh the usage environment is.

• Tunnel Materials

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

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

• Tunnel Materials

We will achieve low-cost, durable concrete structures.

• Tunnel Materials

We create products that serve as bridges and foundations necessary for life.

• Bridge Materials
• Temporary Construction Materials
• Tunnel Materials

Deployment in about 10 minutes with human power! Safe without using electricity! Proven track record with major companies!

• Tunnel construction
• Tunnel Materials

Not only is it difficult to break, but it also has high insulation performance! A product equipped with durability, safety, workability, and versatility.

• Support hardware/opening hardware
• Tunnel Materials

Anytime, anywhere, easily accessible crisis awareness education 'XTraining for Workplace Safety'

• Logistics and warehouse management systems
• Tunnel Materials
• Employee training

Using permeable filters and mesh sheets for the outer layer! Drainage without clogging.

• Piping materials (plastic pipes)
• Drainage material
• Tunnel Materials

Made of polyethylene that can be easily cut with scissors! Since it is molded in one piece, it does not leak water.

• Drainage material
• Tunnel Materials

This is a custom plate nut made of S45C with an outer diameter of 60 mm square, an inner diameter of 27 mm, and a plate thickness of t6.0. The outer diameter corners are rounded and processed in one s...

• Tunnel Materials

We have industrial-grade and food additive grade.

• Tunnel Materials

We offer one-stop service for maritime transport, including full container load (FCL) as well as less than container load (LCL) for cargo that does not fill a container.

• Tunnel Materials
• Parts and Materials
• glue

We will safely and reliably operate cargo that falls under hazardous materials or requires temperature control, utilizing Jet Eight's know-how and experience.

• Tunnel Materials

Jet Eight also handles the arrangement of open-top and flat rack containers, which are essential for ODA-related transportation and project cargo transport.

• Tunnel Materials

Shortened construction period! Drainage between blocks has become possible, eliminating the need for the construction of drainage ditches.

• Tunnel Materials
• Tunnel construction
• Retaining wall

Connection with bolts is possible! It has a structure that can absorb the installation extension of the catch basin position up to 5 cm front and back.

• Tunnel Materials
• Tunnel construction
• Various blocks

We will respond to pipes that are "hard to find and causing trouble" or "given up on" through our network of partner companies! Custom sizes are available, from one piece to large lots.

• Tunnel Materials

[Cost Reduction Proposal] A must-see for design and development personnel struggling with soaring "steel prices"! Achieve cost reduction by thinning the pipes.

• Tunnel Materials
• Tunnel construction
• Pipeline Construction

By collaborating with partner companies, we can accommodate a wide range from φ10 to 400 and t0.2 to 3.0! We accept orders from one piece to large lots, even for custom sizes!

• Tunnel Materials
• Tunnel construction
• Pipeline Construction

Effectively utilize the tunnel cross-section! Excavation of "rectangular cross-sections" with any different aspect ratio is possible!

• Drilling Machine
• Tunnel construction
• Tunnel Materials

A must-have book for passing the concrete diagnostic engineer exam, making the most of all multiple-choice and descriptive questions from the past 21 years!

• Restoration and repair system for cultural heritage buildings
• Renovation and repair methods
• Tunnel Materials