Hebei Haihao High Pressure Flange Fittings Group Co., Ltd. was founded in 1982, covers an area of 580,000 square meters, has 660 employees, total assets of 250 million, annual output of 100,000 tons. Hebei Haihao High Pressure Flange Fittings Group Co., LTD., a key enterprise located in the "capital of elbow fittings in China", is a professional enterprise producing flanges and fittings, with 20 advanced flanges and fittings supporting production lines. Forging, forging, medium frequency pushing, machining, cold forming, hot extrusion, heat treatment and other exquisite technology. With chemical analysis, metallographic analysis, non-destructive testing, mechanical performance experiment and other advanced testing equipment, can produce international and domestic standards of high, medium and low pressure stainless steel, alloy steel, carbon steel, flange, elbow, elbow, tee, reducing pipe, socket and other pipe components products.