In the embodiment of {HEAD ~ the present invention} illustrated in FIGS 1 and 2, the reinforcing agent 16 is {TAIL ~ an O ring} placed between the barbs 12 of the connector 10 
In the embodiment of { HEAD ~ the present invention } illustrated in FIGS 1 and 2 , the reinforcing agent 16 is { TAIL ~ an O ring } placed between the barbs 12 of the connector 10
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH