{HEAD ~ The method} comprises {TAIL ~ the use} of an extrusion die with primary and secondary feed holes and associated discharge slots, wherein extruded material exits the primary discharge slots at a faster rate than the secondary discharge slots 
comprises
{ HEAD ~ The method } comprises { TAIL ~ the use } of an extrusion die with primary and secondary feed holes and associated discharge slots , wherein extruded material exits the primary discharge slots at a faster rate than the secondary discharge slots
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH