{HEAD ~ The substrate} consists of a metal or {TAIL ~ an alloy} mainly composed of Ni or Al, or stainless steel 
consists of
{ HEAD ~ The substrate } consists of a metal or { TAIL ~ an alloy } mainly composed of Ni or Al , or stainless steel
HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH