The blended mixture is thereafter extruded into {HEAD ~ a sheet} at temperatures in {TAIL ~ the range} of about 490° to 530° F 
The blended mixture is thereafter extruded into { HEAD ~ a sheet } at temperatures in { TAIL ~ the range } of about 490 ° to 530 ° F
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH