'Metal workers' in the Bible

The Lord showed me two baskets of figs sitting before his temple. This happened after King Nebuchadnezzar of Babylon deported Jehoiakim's son, King Jeconiah of Judah. He deported him and the leaders of Judah, along with the craftsmen and metal workers, and took them to Babylon.

He sent it after King Jeconiah, the queen mother, the palace officials, the leaders of Judah and Jerusalem, the craftsmen, and the metal workers had been exiled from Jerusalem.