Weld method: DC MMA, DC TIG, DC Pulsed TIG, AC TIG, AC pulsed TIG. Characteristics: 1. Weld method: DC MMA, DC TIG, DC Pulsed TIG, AC TIG, AC pulsed TIG.2. Adopt micro computer technology and inverter technology make the machine work more stable and more energy saving. New technology also makes the machine smaller and lighter.3. AC square pulse, width of +/- half pulse, and AC frequency can be ...