The present invention concerns {HEAD ~ a method} and {TAIL ~ apparatus} for controlling production run sequences of insulating glass units 
The present invention concerns { HEAD ~ a method } and { TAIL ~ apparatus } for controlling production run sequences of insulating glass units
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH