Then, {HEAD ~ an extruding shaft} is pushed forward into the mold chamber from {TAIL ~ an end} of the mold module 
is pushed forward from
Then , { HEAD ~ an extruding shaft } is pushed forward into the mold chamber from { TAIL ~ an end } of the mold module
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH