The outer surface of the cooling tube 554 is further configured to cooperate with an inner surface of {HEAD ~ the sleeve} 56 to sealingly enclose {TAIL ~ the cooling channel} 558 
to sealingly enclose
The outer surface of the cooling tube 554 is further configured to cooperate with an inner surface of { HEAD ~ the sleeve } 56 to sealingly enclose { TAIL ~ the cooling channel } 558
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH