A lid sheet is heat sealed to {HEAD ~ the container sheet} over {TAIL ~ the thermoformed containers} so as to produce a pair of spaced apart, annular bead heat seals 
over
A lid sheet is heat sealed to { HEAD ~ the container sheet } over { TAIL ~ the thermoformed containers } so as to produce a pair of spaced apart , annular bead heat seals
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH