Corrosion resistance of steel is increased by adding
a) Chromium and nickel
b) Nickel and molybdenum
c) Aluminium and zinc
d) Tungsten and sulphur
Corrosion resistance of steel is increased by adding
a) Chromium and nickel
b) Nickel and molybdenum
c) Aluminium and zinc
d) Tungsten and sulphur