(1) 100% rated duty cycle meets requirement of highly intensive working load (2) Applicable for welding carbon steel, stainless steel ,pressure container,metal construction (3) Perfect protection circuit and steady performance makes the machine highly reliable (4) Special arc ignition technology ensures excellent arc ignition capacity (5) Welding current/ voltage/speed can all be present and dispaayed digitally. (6) Small size, simple structure and high in efficiency wooden carton