{TAIL ~ The decorative panel} may be of uniform thickness or be recessed at {HEAD ~ its periphery} to fit the dimension of the flanges 
{ TAIL ~ The decorative panel } may be of uniform thickness or be recessed at { HEAD ~ its periphery } to fit the dimension of the flanges
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH