DC Multi-functions Welder Three functions in one machine, Tig welding, MMA welding and air plasma cutting 1.Advanced inverter technology, reduced size and weight, easy to carry. 2.Novel and effective, and low cost;3. Three functions in one machine, Tig welding, MMA welding and air plasma cutting 4. Compact and easy for operation.5. D Series are for 110/220 duel voltage input, automatic input ...