Product categories:sawl steel pipe Product display:structural tube, sawl steel pipe, api 5l oil and gas line pipe, oil and gas transmission trunk pipeline, large longitudinal welded pipe, submerged-arc longitudinal welded pipe Product description:the products structural tube are exported to southeast asia, the middle east and africa, europe, australia, and latin america and other regions and countries via other foreign trade companies, and are widely used in oil and gas pipelines, oil field construction, urban water supply and drainage project, power plant construction and steel structure works, etc Manufacturing standards: api 5l psl1, api5l psl2, iso 3183, gb/t9711, etc. Main purpose: oil and gas transportation pipe, other middle and high presure fluid transportation pipe.