Tongyu Heavy Industry Co., Ltd. engages in the research, development, manufacturing, sales of large castings and forgings products. Its products include shaft for wind turbine tower, pipe mould, roll, pressure vessel forgings, open die forgings, castings, electroslag remelting ingot, steel ingot, fabrications, and full sets equipment. The company was founded on May 25, 2002 and is headquartered in Dezhou, China.