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