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Cryogenic treatment: Revision history


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  • curprev 01:0901:09, 25 April 2023 PrescottP talk contribs 18,040 bytes +2,966 Changed cryogenic hardening to cryogenic tempering; Added context around industry and processing invention history; removed links without titles or names that are unrelated to historical context of the industry and technology development. undo Tag: Visual edit

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