slag is left behind by the flux in a Manual Metal Arc Welding process to protect the weld from moisture, oxygen, nitrogen and other gases in the air as it solidifies.
slag is left behind by the flux in a Manual Metal Arc Welding process to protect the weld from moisture, oxygen, nitrogen and other gases in the air as it solidifies.
slag is left behind by the flux in a Manual Metal Arc Welding process to protect the weld from moisture, oxygen, nitrogen and other gases in the air as it solidifies.