金属惰性气体电弧焊 mig welding ; metal arc inert gas welding

惰性气体电弧焊 inert gas arc welding

惰性气体电弧点焊 inert gas arc spot welding

惰性气体保护电焊 inert arc welding

金属极惰性气体电弧焊 inert gas metal arc welding

或惰气钨极电弧焊 gas tungsten arc welding ; GTAW