Tempered beryllium copper is C17200 & C17300 that has been age hardened and cold drawn.
2.
The wing skins are formed cold using dry ice, then age hardened to T-42 standards.
3.
But as age hardened his lovable-goofball looks into an eerie approximation of a junior Rodney Dangerfield, Stern's performances became more pie-in-the-face broad.
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