Superior Industries Acquires GreyStone

Superior Industries, Inc., Morris, Minn., purchased GreyStone Inc., a manufacturer of washing, classifying and dewatering solutions. The company has operations in Columbus, Neb., and sells through a network of dealers in North America, Europe, Africa and Australia. GreyStone manufactures a full line of washing/screening plants, sand classification tanks and systems, dewatering screws, coarse material washers, log washers, computer control systems,…

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