DC IGBT welding machine 1.Suit for welding kinds of basic acidity, 2.widely used 3.high ... -load loss, good welding quanlity.♥ Compact, light and portable, suitable for moving, going out, convient to weld small-scale construction member ... automatic when voltage is waving,auto-protection of over-voltage,over current,over-heat.♥ Suit for welding kinds of basic acidity, alkalescence welding rods ...