'Metalsmiths' in the Bible

After Nebuchadnezzar king of Babylon had deported Jeconiah son of Jehoiakim king of Judah, the officials of Judah, and the craftsmen and metalsmiths from Jerusalem and had brought them to Babylon, the Lord showed me two baskets of figs placed before the temple of the Lord.

This was after King Jeconiah, the queen mother, the court officials, the officials of Judah and Jerusalem, the craftsmen, and the metalsmiths had left Jerusalem.