Hebei tongmao pipeline equipment manufacturing Co., Ltd is a large scale manufacturer of ductile iron pipes, heat preservation and anti corrosion pipes and pipe fittings in China. It is a provincial science and technology enterprise intergrating the research, development, production and sales of pipes and pipe fittings.

It is located in Puwa development zone, Yanshan country, Cangzhou city, Hebei Province. China's pipeline equipment manufacturing base. The comany has a modern workshop of 3500 square meters and advanced production equipment and has a high degree of automation ang the mechanization of process equipment. Key equipment such as intermediate frequency electric furnaces and specturn analyzers are imported from abroad. The entire production line of

Centvifugal molding, annealing, zincspvaying finishing ang packing ranks domestically advanced. It owns a 318 cubic metre blast furnace with a daily output of 1000 tons of high-quality hot metal. It adopts the blast furnace-electric furnace dual short-flow contiouous casting process to produce centriugal ductile iron pipes in strict accordance with GB13295 and ISO2531 standards. The main products are 15types of ductile iron pipes of DN80-1200mm. The products are widely used in gas transmission, water supply electricity and other projects.