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pittsburgh steel mills today

Dec 27, 2020·Steelproduction formed the basis of the city's growth and prosperity beginning in the 19th century and continuing into the 1970s.Steel millswere once the main employers of manyPittsburghresidents, and much of that legacy is still evident in the local culture. Thesteelindustry was a major component in the growth ofPittsburgh

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