product:steel pipe Standard:GB/T8163 Chinese national standard Application:General ... treadmentBlack painting , Anti-rust varnish, Anti-rust oil , Hot-galvanized , Cold galvanized ,3PE, EPOXY coating, FBE, etcspray word processingAccording to the ... 450C) etcSteel gradeQ195,Q195L,Q235 and so on PackingPlastic steel pipe cap ,plastic bag, steel strip bundledCertificateAPI, CCS, ISO9001:2000Delivery ...