Nippon Chutetsukan K.K. manufactures and sells ductile iron pipes and lids, polyethylene gas pipes, and valves primarily in Japan. It provides ductile iron pipes for applications in water supply, sewage, gas, industrial water, agricultural water, etc.; ductile cast iron deformed tubes; ductile iron covers for applications in water supply and sewage, gas, electricity, communication, etc.; polyethylene pipes for gas; valves and stoppers; accessories, such as push rings, rubber ring, and bolts and nuts; cast iron products; and water supply and on-site pipe laying works. The company was incorporated in 1937 and is headquartered in Chuo, Japan.