The second support apparatus rotatably supports the electrode of the welding device in a relatively fixed relationship to the valve body and has an elongated tubular member extending through {HEAD ~ the hole} in {TAIL ~ the first support apparatus} 
in
The second support apparatus rotatably supports the electrode of the welding device in a relatively fixed relationship to the valve body and has an elongated tubular member extending through { HEAD ~ the hole } in { TAIL ~ the first support apparatus }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL