Steel manufacture, Allegheny-Ludlum. Testing is an integral part of the work at the steel mills. Thousands of dollars worth of amazingly accuarate testing machinery will be found in every mill, testing tensile strength, elastic limit, elongation and reduction of area. All steel is thoroughly tested before it is shipped out for defense production
Summary
Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description
Tags
Date
01/01/1940
Contributors
Palmer, Alfred T., photographer
United States. Office for Emergency Management.
Location
Brackenridge, 40.60812, -79.74116
Source
Library of Congress
Copyright info
Public Domain