Still more particularly, it is directed to {TAIL ~ molded hardboard roofing shingles} impregnated with a phosphorus containing {HEAD ~ phenolic resin} 
Still more particularly , it is directed to { TAIL ~ molded hardboard roofing shingles } impregnated with a phosphorus containing { HEAD ~ phenolic resin }
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD