Charging a Bessemer Convertor with approximately 5 to 10 tons of molten iron prior to conversion to steel, Pittsburgh, Pennsylvania, ca. 1890 [600x470]

>> Charging a Bessemer Convertor with approximately 5 to 10 tons of molten iron prior to conversion to steel, Pittsburgh, Pennsylvania, ca. 1890 [600x470] << (from: i.redd.it)

Published 2 years ago

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