The channels have {HEAD ~ a suitable diameter} to correctly size {TAIL ~ the channels} 62 and 64 of the body 60 and to press the seams 66 of the body together 
to correctly size
The channels have { HEAD ~ a suitable diameter } to correctly size { TAIL ~ the channels } 62 and 64 of the body 60 and to press the seams 66 of the body together
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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