A.Cast iron
B.Medium carbon steels
C.High alloy steels
D.Alloys of aluminium, magnesium, nickel etc
E.Alloys of chromium, vanadium etc
A.Cast iron
B.Medium carbon steels
C.High alloy steels
D.Alloys of aluminium, magnesium, nickel etc
E.Alloys of chromium, vanadium etc