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Bluffton Stone Co is a Bluffton, OH-based company in the Agriculture and Mining sector.
The North American Coal Corporation, a subsidiary of NACCO Industries, Inc. (NYSE:NC), mines and markets lignite coal primarily as fuel for power generation and provides selected value-added mining services for other natural resources companies
Diamond Services Co is a Woodward, OK-based company in the Agriculture and Mining sector.
David F Briggs is a Tucson, AZ-based company in the Agriculture and Mining sector.
Winoa is an international market-leading innovator of steel abrasives products and services, renowned all over the world under the brand "W Abrasives".