DC MMA welding machine 1.Adopt with advanced MOS/IGBT inverter technology, save energy, ... . 3. Fan-cooled, automatic protection of over-voltage and over-current, thermostatic protection, moveable welding cable. 4. Strong welding permeability, less splash, good ... and acid electrodes. 6. Be able to long-distance weld all kinds of material, such as stainless steel, steel, tungsten, titanium ...