Public domain
Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. The huge carbon electrodes of the thirty-five ton electric melting furnaces used in converting scrap iron and steel into high quality alloy steels. A worker is adjusting the rings that guide the electrodes into
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Credit lineSteel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. The huge carbon electrodes of the thirty-five ton electric melting furnaces used in converting scrap iron and s. 1940-01-01. United States. Office For Emergency Management, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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