CO2 gas protection tig welding wire machines The CO2 welding power is used in ... control, weld, and can be comparable with imported machines. It is adapted for thin, medium and thick ... , 5. Continuous and discontinuous welding function, 6. Automatic voltage pulsation compensation capability, 7. Suitable for carbon ... , uniform welding pool, good welding shape. Automatic MIG&MAG Spot welding hand machine