... Adopt inverter technology with AC/DC TIG/MMA pulse welding function.♦ Specially used to weld Aluminum and aluminum alloy,copper ... arc staring,good weld appearance,simple electric circuit.♦ The full function pulse adjustment,can adjusting the pulse current fast upward or ... over-heat,over-voltage,over-current under-voltage protection function,safety and reliable.♦ High duty cycle,can work continually ...