The method 3 wherein {TAIL ~ the pressure} to which {HEAD ~ said heated glass} is subjected is a pressure of about 70,000 psi 
to is subjected
The method 3 wherein { TAIL ~ the pressure } to which { HEAD ~ said heated glass } is subjected is a pressure of about 70,000 psi
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL REL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH