Shanghai Changhao international Co., Ltd established 2002. Is an internal whole business enterprise, which is specialized in design, manufacture, examination and Sale in insulation joints, insulating flanges, contain steel flanges, steel butt welding pipe fittings, forged pipe fittings, stainless steel pipe fittings and pipes, vales, Which covers an area of 24, 000 square meters. With 240 staffs and 80 sets of various facilities, such as Machining Center, CNC Lathe, CNC Miller, Common Lathe, Boring Machine, Miller, Driller, etc. The company possesses advanced and complete chemical, physical and pressure test equipments.

The company s management strictly complies with the up-to-dated enterprise system. The company has attached great importance to the introduction and education for the scientific and technical staffs.



The company mainly manufactures fittings according to JIS, DIN and Chinese GB standards. The main products include Elbow, reducer, Tee, insulating joint, insulating flange, flange etc. The size ranges from NPS 2 to NPS 56. The pressure ranges from Class 150 to Class 2500. The main materials of the products are A105, Q235, ST37.2, SS400, ASTM A182 F304/304L, F316/316L, F316H, F310, F321, F44 (UNS S31254), ASTM A182 F1, F5a, F9, F11, F12, F22, F91



The products are widely used in the field of petroleum, chemical, metallurgical, power, fuel gas, and city pipeline networks. 30% of our products, about 500TON, have been exported to Spain, Australia, South Africa, Indonesia, Singapore, Kuwait and etc. With high content of technology and reliable quality, our products have gained good reputation from the customers.



Facing the furious competition of the fittings market, we will fully exert our advantage on technology and management to improve continuously our product quality and manufacture high quality valve product to satisfy the customers. Welcome to Changhao Shanghai.