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You searched for Postal Code: 15110

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historicalmarkerproject/markers/HMU94_duquesne-steel-works_Duquesne-PA.html

Plant here began in 1886. Acquired by Andrew Carnegie in 1890, then by United States Steel in 1901. Workers here implemented advances in rolling mill and blast furnace processes before 1914; in pollution control, 1953. At peak of operations they m…

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