The method creates a sequence of runs of {HEAD ~ insulating glass units} to be produced for {TAIL ~ assembly} to window or door sash and frames at a plurality of glazing lines 
to be produced for
The method creates a sequence of runs of { HEAD ~ insulating glass units } to be produced for { TAIL ~ assembly } to window or door sash and frames at a plurality of glazing lines
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH