... toleranceShape: round,square,rectangularsurface: pickled, acid, polished, black,ectcertificate: ISO, BV, API, CSC,DNV,ectnormal length ... OEM/ODMtechnical: Seamless &weldedType: stainless steel pipeeamless carbon steel pipe Packaging Detail:Export standard package, bundled ... general purpose parts, cutting tools, mechanical parts, petroleum refining equipment, bolts and nuts, pump rods, and kitchenware. ...