Nippon Chutetsukan K.K. manufactures and sells ductile iron pipes and lids, polyethylene pipes, and valves primarily in Japan. It provides ductile iron pipes for applications in water supply, sewage, and gas; 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. It also engaged in the construction and sales of pipes, water facility construction, engineering, and pipeline deterioration diagnosis. In addition, it manufactures and sales products, storage and transportation of gas piping materials, collection, transportation, and transshipment storage of industrial waste, scrap metal, and scrap iron. The company was incorporated in 1937 and is headquartered in Chuo, Japan.