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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. <br><br>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 analyzers, digital UT flaw detectors, etc. And also equipped with skilled workers, several engineers. <br><br>Through continuous input of R&D, HQ Pipeline strives to technical innovation, and develops new products constantly, provide OEM/ODM service for non-standard products according to customer′s drawings or samples. <br><br>With maintaining the Total Quality Management (TQM) by Quality Control Section, all products are subject to pass strict inspection at each stage of the production process, from starting material handling to finished product shipping. For years, HQ Pipeline plants have been successively qualified to produce pressure pipeline unit, honored with " Nationwide Quality Credit AAA Brand Enterprise" And " Contract abiding company", certified with ISO9001-2008. <br><br>Years of professional pipeline production technics and rich