Tool Steel bar W1-7,W5,L1,L7, F1,S1,D3, D2, A2, ... -2-5,X30WCrV93,40CrMnMo7 We are professional of supplying Tool steel bar by standard ASTM A600,A681,A686, DIN 17350,GB/T1298 ... :ASTM A600,A681,A686, DIN 17350,GB/T1298,1299,99432.Type:By ASTM:W1-7,W1A-8,W1-9,W2-9 ...