Plastic is injected into the mold and flows into the space between the core pin tip and the clearance hole forming {HEAD ~ a vestigial nozzle pilot cylinder} around and over {TAIL ~ the ampule nozzle} 
over
Plastic is injected into the mold and flows into the space between the core pin tip and the clearance hole forming { HEAD ~ a vestigial nozzle pilot cylinder } around and over { TAIL ~ the ampule nozzle }
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 HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL