{HEAD ~ The cross section} and luster of the fibers or the filament may be varied, e.g., as dictated by requirements of {TAIL ~ the intended end use} 
{ HEAD ~ The cross section } and luster of the fibers or the filament may be varied , e.g. , as dictated by requirements of { TAIL ~ the intended end use }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL