Which metal is used to make alloy steel for armour plates, safes and helmets (a) Al (b) Mn (c) Cr (d) Pb safes and helmets (a) Al (b) Mn (c) Cr (d) Pb Which metal is used to make alloy steel for armour plates December 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
