A specular surface 26 is formed at the interstice of {HEAD ~ film} 23 and {TAIL ~ metallized coating} 24 
A specular surface 26 is formed at the interstice of { HEAD ~ film } 23 and { TAIL ~ metallized coating } 24
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH