Process of Flame Hardening
Sign in to track this film in your collection or want list.
Various flame hardening operations on gears, sprockets, lathe way beds.
Complete catalog record
Category: Materials & Metals
Subcategory: Motion Pictures
Type: Slide Film
Source: Air Reduction
Format code: 16si
Subcategory: Motion Pictures
Type: Slide Film
Source: Air Reduction
Format code: 16si
Source: Index of Training Films 1946 · Record added 2026-07-09 22:50:41