... .high frequency Smooth dc inverter arc cutting machine CUT-60 ◊welding style:to cut with ordinary compressed air ◊use range: widely ... the raw metal with a rust and paint to be cut; 3.do not pollute the environment, more economical than ... cutting machine, high efficiency, enviromental protection; ◊perfect protection system: 1.under voltage, over current, overheating, overload,plase failure, lack of air ...