Duff Quarry Inc.

9042 State Route 117

Huntsville, OH 43324

Phone: (937) 686-2811

Website: www.duffquarry.com

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Bryce, Hill, Inc

2301 Sheridan Ave.

Springfield, OH 45501

Phone: (937) 325-0651

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204 1/2 Lincoln Blvd.

Russells Point, OH 43348