... ) Out diameter:219--3220mm 4)ISO9001:2000 API Spiral Welded Pipe StandardBS, JIS, GB, DIN, ASTM, APIStandardBS 1387, JIS G3463-2006 ... OriginHebei, China (Mainland)Secondary Or NotNon-secondaryApplicationOil,Fluid,Boiler,Hydralic,Structure,Chemical--TechniqueHot RolledCertificationAPISurface TreatmentGalvanized, PaintingSpecial PipeThick Wall PipeAlloy Or NotNon ...