Engineering; Heat Treatment Of Steel.

Duration: 1 reel

Year Published: 1945

Complete Record: ENGINEERING; heat treatment of steel. Audio Productions, Inc., c1945. 1 reel each. © Audio Productions, Inc. 1. Elements of Hardening. © 1Jun45; MP16181. 2. Elements of Tempering, Normalizing and Annealing. © 1Jun45; MP16182. 3. Elements of Surface Hardening. © 1Jun45; MP16183.

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