| Ozark Abrasives Inc (Gravois Mills, MO)
|
| Pacer Industries Inc (Chippewa Falls, WI)
|
| Pacific Grinding Co (Marysville, WA)
|
| Pacific Grinding Wheel Co (Eugene, OR)
|
| Panadyne Inc (Warminster, PA)
|
| Pellets Llc (North Tonawanda, NY)
|
| Performance Abrasives (Cincinnati, OH)
|
| Pittsburgh Abrasive & Supply (Oakmont, PA)
|
| Plymouth Products Inc (Plymouth, IN)
|
| Precise Marketing (Raleigh, NC)
|
| Precision Abrasives (Pittsburgh, PA)
|
| Preferred Abrasives Inc (Troy, OH)
|
| Pressure Blast Mfg Co (Manchester, CT)
|
| Prima International (Chicago, IL)
|
| Production Abrasive (Punxsutawney, PA)
|
| R & D Laminations Inc (Plainfield, IL)
|
| R & K Industrial Products (Richmond, CA)
|
| R K Grinding (Huntington Park, CA)
|
| Radiac Abrasives Inc (Salem, IL)
|
| Rdm Multi-Enterprises (Anaconda, MT)
|
| Red Hill Grinding Wheel Corp (Pennsburg, PA)
|
| Reed Minerals (Rockdale, TX)
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| Regis Manufacturing Co (Dallas, TX)
|
| Relco Abrasives (Taunton, MA)
|
| Research Abrasive Products Inc (Wickliffe, OH)
|
