produce SAWL, SAWH, HFW and SMLS steel tube with diameter 8 mm–4080mm and wall thickness 0.3mm–120mm. The group also has self-owned pipe coating facilities and other workshops, warehouses for further process and logistics guarantee. After years of development, the group and affiliated enterprises have obtained many kinds of domestic and international certifications including ISO2008/14001, API 5L/5CT,CE, License for Pressure Piping System, etc. The group has obtained good domestic achievements and is the nominated supplier of CNPC, SINOPEC and CNOOC. The product are exported to Southeast Asia, the Middle East and North Africa, Europe, Australia, Middle and Latin America countries and regions, and are widely used in oil and gas pipelines, oil field construction, water supply and drainage project, pile foundation construction, power plant construction and big steel structure works, etc.