Tool Steel bar W1-7,W5,L1,L7, F1,S1,D3, ... -2-5,X30WCrV93,40CrMnMo7 We are professional of supplying Tool steel bar by standard ASTM A600,A681,A686, DIN 17350,GB/T1298 ... ,1299,99431.Standard:ASTM A600,A681,A686, DIN 17350,GB/T1298,1299,99432. ... -5-23.Size: Dia 1-400mm 4.Packing: exporting packing Tool Steel Bar