According to a more particular aspect of the present invention, {HEAD ~ a protective encasement} of {TAIL ~ fiber material} is provided 
of
According to a more particular aspect of the present invention , { HEAD ~ a protective encasement } of { TAIL ~ fiber material } is provided
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH