... CE,SGS, ISO9001, CCC MIG-500P Double Pulse Aluminum Inverter Digital Welding Machine Order No.ZT5751Product ModelMIG-500PInput Voltage/Frequency3~ ... the waveform.5, Digital wire-feed controlling system can make the aluminum wire feed steadily.6, Design for welding aluminum plate. ... of avoiding over-current, over-voltage, over-heating, wire-blocking9, Automatic welding can be worked if the machines are ...