About Us

• ~Hebei Haihao High-pressure Flange & Pipe Fittings Group Co., Ltd. (HHG) , founded in 1982 , is a professional manufacturer of flanges and pipe fittings with various materials. Now covers an area of 580,000 square meters , HHG has 660 employees and annual output is 100,000 tons as Hebei haihao high-pressure flanges and pipe fittings groull as total assets of HHG amounts RMB 250 million. HHG has 22 advanced flange and pipe fitting production lines and professional production process in forging, stamping, medium-frequency electric forming, machining, cold forming, hot forming and heat treatment. The laboratory of HHG has inspection devices in chemical analysis, metallographic analysis, non-destructive testing and mechanical performance tests to guarantee the quality of HHG products. HHG has the ability to produce high-pressure, medium-pressure and low-pressure flanges and pipe fittings in stainless, alloy and carbon steel according to the related standards.   Haihao trademark has been identified as China Famous Brand by the State Administration of  Industry and Commerce. HHG are the first enterprise winning a famous brand in pipeline accessory industry of China. HHG has certified by ISO 9001:2008, OHSAS 18001:2007,IOS 14001:2004, ABS, BV and PED. HHG is in the AVL of CNPC ,SINOPEC and the State Grid Corporation. Moreover, we are a member of China Forging Association and have been rated as a Grade AAA Credit Enterprise by the Agricultural Bank of China Hebei Branch. Haihao brand flanges and pipe fittings well distributed in over 30 provinces and cities of China and are also exported to more than 20 other countries and regions. We provide high-quality products and win good reputations. In recent years, we have been leading the market in product R&D and have developed our key  products wind power flange and large forgings, which have been used in aerospace, heavy industry, wind power, nuclear power and other high-tech fields. With 6,000-ton hydraulic forging press machine, 30 tons forging manipulator, 5 meters CNC ring rolling machine, 8 meters CNC lathes, 5 meters CNC VTL, 5 meters CNC drilling machine, 5 tons forging loading machine and 16 tons Forging forklift, HHG can produce 50-ton forgings and large rolling flanges with a diameter of DN5000. All this features a high degree of automation and high technical content and are large series devices ranked top of forging industry.