In {HEAD ~ the panel system} 24, wherein said extrusion member securing said tray has {TAIL ~ a flanged channel} for receiving said tray flange members 
In { HEAD ~ the panel system } 24 , wherein said extrusion member securing said tray has { TAIL ~ a flanged channel } for receiving said tray flange members
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH