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Qingdao Sangao Metal Material Co., Ltd. is located in Jiao Zhou district, Qingdao city, Specializing in the production and sale in the I-beam, Stainless steel tube, Round bar, channel steel, Stainless steel sheet, H-beam, carbon steel, seamless pipe, angle steel and big diameter LSAW pipes. Qingdao Sangao Metal Material Material Co., Ltd is a sub-factory of Qingdao Sangao Metal Structure Co., Ltd which is a professional supplier of LSAW Pipes, API Pipes and the diameters are all above 400mm. These pipe are widely applied in the field of Gas Transportation, Steel structure, Stadium and Mechanical fields. We owned the complete production technique and related equipments for coking, sintering, iron, steel, steel rolling etc, also including the related energy source power system. Meanwhile, they have arrived the production technique` s completeness and system at the modern steel industry. Our company specialized in the production and sale in the seamless steel tube, angle steel, H-beam, channel, I-beam, hot and cold rolled steel sheet, middle thickness plate, pattern plate, pressure vessel plate, galvanized plate, silicon steel, line steel, kinds of reinforcing steel bar, round bar and cold-formed steel etc. Our products are marketed widely all over the country and exported to North American, Europe, Middle East and Southeast Asia, etc and get the good reputation based on good quality.