Hebei Haihao Flange Factory ,established in 1982,is one of the biggest flanges manufacturer in China.Our flange factory is located in Mengcun County,Cangzhou City,Hebei Province,We are specialized in the production of forged steel flanges,plate steel flanges.We also have engaged in research and design in flanges,rings,customized forgings, and have made excellent achievements in the high quality flange industry. Our flange products are widely used in the following industries: Oil,Gas,Chemical,Shipbuliding,Water treatment ,Power plant, steam,construction and other fields all over the world.