- Heavy duty IGBT AC/DC inverter tig welder for GTAW / TIG / ARGON & SMAW / MMA / STICK welding. Less consumption of electricity, stable arc, built in protective circuit to prevent over heat, over current, advance arc start function can resist interference, high welding quality, deep path, strong strength & high duty cycle. Crater current, Pulse frequency, Pulse width, AC cleaning, TIG spot time, Down slope times & After flow times.
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