Behind more thick metal doors is a room where messages were sent and received in code.

The door was solid, made of thick metal painted green.

I did not say they were shielded, only that the shed was made of thick metal.

At least she would be safe beneath the protection of the thick metal.

They were essentially empty boxes made from metal only a few molecules thick.

Made of thick metal, it was made to operate up and down, like a window sash.

Another man pounded on the thick metal of the airlock's outer door.

They crowded behind a thick metal and concrete shield that cut them off from direct sight of the set up.

She heard a clunk and felt a scrape through the thick metal.

The door was thick metal, its frame embedded deep into the mountain itself.