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