A pipeline for conducting air for {HEAD ~ air conditioning} in {TAIL ~ aircrafts} includes a body portion formed with foamed plastics material or with a dense plastics material 
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A pipeline for conducting air for { HEAD ~ air conditioning } in { TAIL ~ aircrafts } includes a body portion formed with foamed plastics material or with a dense plastics material
OTH OTH OTH OTH OTH OTH 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