To be melted down to make new iron.

Another three thousand were mobilized to logging in order to meet the fuel demand of making steel and iron.

It is believed to be made of molten (melted) iron and nickel.

This essay concerned the experiments and findings from using black sea sand to make iron.

It's where they melt down ore to make iron and steel.

They would then try to make iron for tools.

With a long history of more than 2,000 years, this provincial capital now makes iron, steel, heavy machinery, and fertilizer.

Wood patented a new process for making iron (which proved not to be economically effective).

Winthrop went to London to recruit men with the specialized skills required for making iron.

There, he made iron using coke, thus establishing the first successful business in Europe to do so.