a second metallic material provided on a surface of {TAIL ~ the thermoplastic substrate} opposite {HEAD ~ the first metallic material} 
a second metallic material provided on a surface of { TAIL ~ the thermoplastic substrate } opposite { HEAD ~ the first metallic material }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD