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