Civil Engineering & Construction Materials
Safety and cost efficiency
for Asia's infrastructure.
For over half a century, we have supplied RC and steel segments for shield tunneling, concrete reinforcement fibers, and civil/architectural moulds through our trusted East-Asian sourcing network.
Civil Engineering & Construction Materials
RC Segment
Reinforced-concrete shield-tunnel lining segments, manufactured at overseas partner plants under Japanese-grade quality control.
Steel Segment
Steel lining segments for gas, subway, and road tunnels — produced to ±1 mm dimensional tolerance.
Moulds (Formwork)
High-precision formwork including RC-segment moulds (±0.5 mm), and PC slab moulds for highway repair.
Steel Fiber (BUNDREX®)
Structural reinforcement fiber for RC. Sole Japanese distributor of KOSTEEL BUNDREX® (Korea).
Polypropylene Fiber
Non-structural PP fiber preventing cracking and spalling. Supplied to leading Japanese general contractors.