In this latter there is provided {HEAD ~ a cup} coaxial with the connection channel and with its concavity facing {TAIL ~ the blister} in the piercing position 
In this latter there is provided { HEAD ~ a cup } coaxial with the connection channel and with its concavity facing { TAIL ~ the blister } in the piercing position
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH