Union Steel Industry Co., Ltd as member of United Steel Industry Group, specialized in steel pipe(LSAW Steel Pipe, SSAW Steel Pipe, ERW Steel Pipe, SMLS Steel Pipe, Coated Steel Pipe, Stainless Steel Pipe, etc) and pipe fittings designing, manufacturing, stocking and exporting in China. As one of the leading manufacturer of steel pipe products in China, Union Steel Industry Co., Ltd are committed to providing one-stop service to customers around the world. Union Steel Industry Co., Ltd has leading technology of steel pipe production and research at home and abroad, advanced and complete testing facilities. We strictly in accordance with the ISO 9001 quality management system for on-site management, SGS, BV, TUV, ABS,LR, GL, DNV, CCS, RINA, RS and other authoritative TPI organizations. For years, steel pipe products supplied by Union Steel Industry have been widely applied in engineering projects such as oil and gas extraction, water transportation, urban pipeline network construction,