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