1. minimizing, lightness, high quality and energy-saving 2. high duty cycle, with protection of over-voltage, be able to work continuously 3. high quality and stable characteristic, it can balance automatic when voltage is waving. 4. stable arc, beautiful welding seam, deep bath, little splash and adjustable arc force. 5. be able to dig by compressed air and arc of carbon stick above 500Amps. 6. suit for welding all kind of basic welding rod, be able to weld cellulose rod.
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