adjustable digital control stable current little spatter TIG/MMA/ACDC/PULSE(V-MOS)AC/DC,TIG/MMA function.Digital meter displaySmooth arc and ... steel,stainless steel, copper and non-ferrous metal with DC TIG functionand aluminum,aluminum alloy welding in AC function.Auto matic ... acid and basic type electrodes.2T/4T trigger.AC/DC,TIG and MMA function available.Current adjustable by foot control.(option ...