The membrane is sealed to the spigot on an outer face of the spigot which is configured so that the membrane will be clamped in position during {HEAD ~ piercing} of {TAIL ~ the membrane} by a cutter 
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The membrane is sealed to the spigot on an outer face of the spigot which is configured so that the membrane will be clamped in position during { HEAD ~ piercing } of { TAIL ~ the membrane } by a cutter
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 HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH