This factory manufactures iron using coke.

I will work using this laptop.

He stared at the corpse, trembling with fear.

He stared at the corpse, trembling with fear.

We are working on the manufacturing of new products.

We are building a factory to manufacture new products.

My father works at that factory.

This iron has been used since ancient times.

He started a fire using coal.

He is drawing a picture using charcoal.