Why is the iron and steel industry called a heavy industry?

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#1

Why is the iron and steel industry called a heavy industry?

Answer:
Iron and steel industry is called a heavy industry because all the raw material as well as finished goods are heavy and bulky entailing heavy transportation costs. Iron ore, coking coal and limestone are required in the ratio of 4:2:1 approximately. Some quantity of manganese is also required to harden the steel.