A.Nickel, chromium
B.Nickel, chromium and copper
C.Nickel, chromium and silver
D.Nickel, chromium and aluminium
E.Nickel, chromium and iron
A.Nickel, chromium
B.Nickel, chromium and copper
C.Nickel, chromium and silver
D.Nickel, chromium and aluminium
E.Nickel, chromium and iron