Lightweight! Aluminum sheet piles (aluminum trench) that are about 1/3 the weight of lightweight steel sheet piles type 1, suitable for general temporary earth retention in small-scale excavation works up to a depth of 3.8 meters!
Piping and wiring burial system! Numerous achievements! Solving problems of "crossing national roads, railways, waterways, and rivers"! "Challenging the creation of lifelines that traverse the Earth and underground."
Water supply concrete tank interior coating method
FRP lining method for the inner surface of concrete water tanks for water supply.
Solving issues such as scale buildup, corrosion, and heat loss due to water quality! Numerous achievements in hot spring piping and heat supply piping!
The archive of the live stream of "Sewer Exhibition '22 Tokyo" (including a discussion between Professor Kato from the University of Tokyo and our President Yamaguchi, as well as a demonstration of the ice pigging pipe cleaning method) is now available!
[New Stainless Steel Material] An alternative steel type to stainless steel. "Duplex Stainless Steel" with double the strength and excellent corrosion resistance.
Piping and wiring underground installation system (non-excavation and thrust method)! Numerous achievements! Also gaining attention for "overhead line removal"! "Challenging the creation of lifelines that traverse the Earth and underground."
[Free demo units available] 3.9mm diameter flexible endoscope with 360° movable camera.
[Free demo units available] 6.0mm diameter flexible endoscope with 360° movable camera tip.
2.8mm diameter flexible endoscope with a 360° movable camera at the tip.
Non-polymer, non-fiber type























































































































