superalloy
Technical term for high-performance alloys used in extreme environments such as jet engines and turbines.
Superalloys are used in jet engine turbine blades.
Chogokin; die-cast metal toy line
Brand name for a popular line of die-cast metal robot and character toys originally sold by Popy, now a nostalgic collector's term.
When I was a child, I had a Chogokin Mazinger Z.