{TAIL ~ The substrate} may be made from Nickel Base forgings or {HEAD ~ Titanium base forgings} 
{ TAIL ~ The substrate } may be made from Nickel Base forgings or { HEAD ~ Titanium base forgings }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD