CrMoAlloy precision tubes 1062 OD 4-1080MM WT : 2 - 135 mm length 5-12m 1.Standard:ASTM,DIN,JIS 2.WT:1.75-35mm 3.OD:21.3-610mm 4.Surface:As customers' request 5.Certificate:API & MTC, etcCommodityAlloy Steel Pipe/TubeStandardGB5310-2008,GB9948-2006,ASTM A335/A335M,ASTM A213/A213M,DIN17175-1979,JISG3467-1988,JISG3458-1988Material10#-45#,20MnG,25MnG,15CrMoG,35CrMo,16Mn,etcProduction ProcessCold ...