providing {TAIL ~ a pointed extruding shaft}, which can inserted into {HEAD ~ the mold chamber} from an open end of the mold module; and 
providing { TAIL ~ a pointed extruding shaft } , which can inserted into { HEAD ~ the mold chamber } from an open end of the mold module ; and
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH