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National Tube Works PA1304 Print E-mail
Incorporated 1869, the works began production here, 1872. By 1901, when it became a subsidiary of U.S. Steel, this was the world's largest pipe producer. Major advances in inspection techniques originated here. Plant operations ceased in 1987.
Pa.148 (Lysle Blvd.), subway entrance to plant, McKeesport. Allegheny County Pennsylvania.
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