An electron beam welder is then applied to weld {HEAD ~ the various portions} of {TAIL ~ housing} 12, namely upper housing member 44, intermediate housing member 46 and lower housing member 48 together 
of
An electron beam welder is then applied to weld { HEAD ~ the various portions } of { TAIL ~ housing } 12 , namely upper housing member 44 , intermediate housing member 46 and lower housing member 48 together
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH