Poly para phenyleneterephthalamide compositions, their preparation and a process for {HEAD ~ the production} of {TAIL ~ fibres} from these compounds 
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Poly para phenyleneterephthalamide compositions , their preparation and a process for { HEAD ~ the production } of { TAIL ~ fibres } from these compounds
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH