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