IN THE context of present economic conditions of the country, the substitution of' scarce metals has assumed great importance. The foreign exchange position of the country has compelled the Government to think of various ways for the conservation of foreign exchange. It is, therefore, important that use of scarce metals should be minimised as far as possible.
Considerable amount of foreign exchange is drained out annually for the import of various scarce metals for the need of industries. Most of the non-ferrous metals are scarce in India. The position varies from quite abundance in case of aluminium to deficiency in the case of copper, lead and zinc and a total absence in the case of nickel and tin
