The nozzle has first and second passages for receiving {HEAD ~ first and second plastic materials} from {TAIL ~ the first and second channels} of said manifold, respectively 
The nozzle has first and second passages for receiving { HEAD ~ first and second plastic materials } from { TAIL ~ the first and second channels } of said manifold , respectively
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH