According to {TAIL ~ a first embodiment} of the invention a welding machine includes a power source and {HEAD ~ a wire feeder} 
According to { TAIL ~ a first embodiment } of the invention a welding machine includes a power source and { HEAD ~ a wire feeder }
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD