More specifically, the adhesive 18 is injected in the spaces left between {HEAD ~ the barbs} 12, the reinforcing agent 16, and {TAIL ~ the tube} 14 
More specifically , the adhesive 18 is injected in the spaces left between { HEAD ~ the barbs } 12 , the reinforcing agent 16 , and { TAIL ~ the tube } 14
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH