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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
Ryson International is a Yorktown, VA-based company in the Manufacturing sector.
Harold Beck is a Newtown, PA-based company in the Manufacturing sector.
Bernal - Cerutti is a Rochester Hls, MI-based company in the Manufacturing sector.
L-R Systems is a Romeoville, IL-based company in the Manufacturing sector.