The end of the tube connection piece 13 inserted into the socket 11 is provided with a sealing ring 14, and {HEAD ~ the opposite end} is fixed to {TAIL ~ a suction hose} 15, for example by bonding 
The end of the tube connection piece 13 inserted into the socket 11 is provided with a sealing ring 14 , and { HEAD ~ the opposite end } is fixed to { TAIL ~ a suction hose } 15 , for example by bonding
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH