DC Inverter TIG/MMA welding machine 1. 2 in 1, 60% duty cycle 2. Portable,energy save 3. Stbale performance DC inverter TIG ... welding machine, 2 in 1, 60% duty cycle, single-phase ... , thermostatic protection, starting arc with contact. Stepless current adjustment, widely used, suit for TIG/MMA welding.Electrode diameter 1.6-4mm ...