The pressing operation shapes the main portion of {TAIL ~ the glass} and offsets the reform area from {HEAD ~ the general surface curvature} of the main glass portion 
The pressing operation shapes the main portion of { TAIL ~ the glass } and offsets the reform area from { HEAD ~ the general surface curvature } of the main glass portion
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH