Tool Steel bar W1-7,W5,L1,L7, F1,S1,D3, D2, A2, T1,L6,H21,10,11,12,13,T1,4, ... 5,6,C70W1,W2,S18-1-2-5,X30WCrV93 ... ,40CrMnMo7 We are professional of supplying Tool steel bar by standard ASTM A600,A681,A686, DIN 17350,GB ... ,11.5,W1A-12, W5,L1,L7, F1,S1,D3, D2, A2, 02,07,L6,H21,H10,H11,H12,H13,T1 ...