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Lone Star Technologies, Inc. is a management and holding company with six principal subsidiaries, Lone Star Steel Company (Steel), Fintube Technologies, Inc. (Fintube), Bellville Tube Company, L.P. (Bellville), Wheeling Machine Products, Inc. and
Allied Gordon Office Solutions is a Saint Louis, MO-based company in the Manufacturing sector.
Bartech Precision Machining is a Lemont, IL-based company in the Manufacturing sector.
United Technologies Research Center is a East Hartford, CT-based company in the Manufacturing sector.
Hartness International is a Greenville, SC-based company in the Manufacturing sector.