{HEAD ~ The connection joint} 20 is formed by inserting {TAIL ~ a plastic connector} 10 into the open end of a silicone tube 14 
is formed by inserting
{ HEAD ~ The connection joint } 20 is formed by inserting { TAIL ~ a plastic connector } 10 into the open end of a silicone tube 14
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH