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