... -1200mm Series:200/300/400 Seamless.welded,hot rolled,col large diameter seamless stainless steel pipeStandard: JIS, AISI, ASTM, GB, DIN, ... machine,industry,Certification: ISOWelding Line Type: ERWThickness: 0.5mm-40mmOuter Diameter: 1.0mm-900mmProduct name: ASTM 304 High pressure steel prof ... is supplied with shipment, Third Part Inspection is acceptable. large diameter seamless stainless steel pipe