'Metal workers' in the Bible

And he took away all the people of Jerusalem and all the chiefs and all the men of war, ten thousand prisoners; and all the expert workmen and the metal-workers; only the poorest sort of the people of the land were not taken away.

The king of Babylon deported to Babylon all the soldiers (there were 7,000), as well as 1,000 craftsmen and metal workers. This included all the best warriors.