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