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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
Ultramer is a Massillon, OH-based company in the Manufacturing sector.
Fuji Machine American Corporation is a Vernon Hills, IL-based company in the Manufacturing sector.
WWL Industries is a Odessa, TX-based company in the Manufacturing sector.
Joseph B Johnson is a Mansfield, MA-based company in the Manufacturing sector.