Qingdao HQ Import & Export Co., Ltd.  

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Qingdao HQ Import & Export Co., Ltd, the export office of HQ Pipeline, which is a professional manufacturer & exporter of all kinds of pipe fittings, flanges and valves in China: Forged Steel Pipe Fittings, Flanges, Butt Weld Pipe Fittings, Nipples and Coupling, UL/FM Ductile Iron Grooved Pipe Fittings, Pipe hangers and Clamps, Gate Valve, Butterfly Valve, Check Valve, Strainers, Ball Valve...And casting and forging OEM/ODM service, which are widely used in the field of petroleum, natural gas, ship building, metallurgy, electric power, chemical industries, fire protection etc. HQ Pipeline plants are well equipped with advanced production and inspection equipments: 600T Intermediate frequency push-type forming machine, 3500T Hydraulic-pressure machine, 1/5/8tons forging hammer, air forging hammer, high precision machine tools, electrical heating furnaces, heat treatment furnaces, PMI detection equipment, tensile machines, impact testers, hardness testers, metallographic analy... [详细介绍]