... for stainless steel Features of inverter DC TIG/MMA welding machinery WS250:1. Advanced Mosfet inverter technology, stable current, steady ... and MMA of various metals;4. Stable arc, high welder speed, little spatter, suitable for filler wire welding, excellent ... torch, welding holder, earth clamp, etc.Parameters of inverter DC TIG welding machinery WS250 ModelSpec.WS250Power supply voltageAC 380V±10 ...