yeswelder digital mig-205ds mig welder,200amp 110/220v dual voltage, gas gasless mig welding machine mig/lift tig/arc 3 in 1 multiprocess welder yeswelder 1.it only replies to mild steel welding, and please choose 200mm wire reel rather than 100mm . 2.it is recommended to use 0.8mm 1.0mm er70s-6 in the states of co2/mig and mag 3.in the state of gasless,‘flux’,‘1.0’, there are only 2 alternatives for you. you can choose wire feed rolls 1.0 when you need to use 1.0mm et71-gs; and you can choose wire feed rolls 0.8 when you need to use 0.9mmet71-gs. 4. perfectly solder mild steel, easy to operate, only need to adjust the current, and the voltage will be automatically matched. 5. in the state of gasless , the gasless wire can be used without co2 or co2/ar gas. the welder can be used directly in any situation.