Carnegie Library of Pittsburgh - Pittsburgh Iron & Steel Heritage

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Scientific American articles on U.S. iron and steel production, December 12, 1903
Scientific American articles on U.S. iron and steel production, December 12, 1903
Steel -- Metallurgy., Steel castings., Steel castings industry -- United States., Iron founding -- United States., Iron industry and trade -- United States., Steel industry and trade -- United States., Iron -- Metallurgy.
Scientific American articles on U.S. iron and steel production, December 12, 1903