That abandoned factory was once full of vitality.

He works digging out coal.

Ammonium carbonate is a compound commonly used in inorganic chemistry.

My grandfather used to work in charcoal production.

We have developed a new method to produce charcoal from wood.

This roof is made of galvanized iron.

She can play the glockenspiel well.

He scattered caltrops on the ground.

He used a crowbar to remove the rusted bolt.

This scrap iron can be recycled.