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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
Great Lakes Power is a Mentor, OH-based company in the Manufacturing sector.
Keith Panel Systems Co. Ltd. is a North Vancouver, BC-based company in the Manufacturing sector.
Prairie Trailer is a Morris, MN-based company in the Manufacturing sector.
Micromatic is a Berne, IN-based company in the Manufacturing sector.