The reflector comprises {TAIL ~ an elongated, notched, thermoplastic channel} like {HEAD ~ reflector} having internal and external channel surfaces 
The reflector comprises { TAIL ~ an elongated , notched , thermoplastic channel } like { HEAD ~ reflector } having internal and external channel surfaces
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH