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