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gas metal arc welding (GMAW) the wire cord as the electrod ..gas tungsten arc weling(GTAW) used tungsten electrod to make the arc and the filer metal as the feid.
the differences of tig & mig is the gas that we used.. tig is for argon gas & mig is for co2
TIG welding uses argon gas and a very hot electrode to essentially melt two metals together. MIG welding uses a wire fed filler to fill the space in between to pieces of metal
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