This factory manufactures iron using coke.

I will work using this laptop.

We are working on the manufacturing of new products.

We are building a factory to manufacture new products.

My father works at that factory.

He stared at the corpse, trembling with fear.

He stared at the corpse, trembling with fear.

This iron has been used since ancient times.

Mr. Tan is my best friend.

He started a fire using coal.