He is drawing a picture using charcoal.

This sword is made of iron.

He made a sculpture using iron.

He is using that coat from winter to spring.

You need to use your head to solve this problem.

The manufacturing industry occupies an important part of the economy.

We are considering introducing a new production line.

I will participate in the factory coop next week.

My father works at a paper mill.

My father works at a filature.