... /300/400 Seamless.welded,hot rolled,cold drawn,ERW ductile iron k9 tubeStandard: JIS, AISI, ASTM, GB, DIN, ENPlace of Origin ... ,3000mm,6000mmprice: factory priceservice: OEM/ODMtechnical: Seamless &weldedType: stainless steel pipeeamless carbon steel pipe Packaging Detail:Export standard package, bundled or be ... is supplied with shipment, Third Part Inspection is acceptable. ductile iron k9 tube