{HEAD ~ The outwardly extending perimeter flange} comprises an end surface, an inboard surface, and {TAIL ~ a beveled surface} located between the end surface and the inboard surface 
comprises
{ HEAD ~ The outwardly extending perimeter flange } comprises an end surface , an inboard surface , and { TAIL ~ a beveled surface } located between the end surface and the inboard surface
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH