| Crown Carbide Corp (Salem, VA)
|
| Cti Carbide Tools-Industry (Santa Ana, CA)
|
| Cut-Wel Mfg Co (Assonet, MA)
|
| D & H Cutoff Co Inc (Califon, NJ)
|
| Dale Oxygen & Acetylene Svc (Johnstown, PA)
|
| Dan's Whetstone Co (Pearcy, AR)
|
| Darmann Abrasive Products (Clinton, MA)
|
| Desmond-Stephan Mfg Co (Urbana, OH)
|
| Detroit Abrasive Co (Owosso, MI)
|
| Detroit Abrasives Co (Chelsea, MI)
|
| Dewees Tool & Supply Co (Farmington, NM)
|
| Diagrind Inc (Orland Park, IL)
|
| Diamond Composite Technology (Northbrook, IL)
|
| Diamond Fabricators Inc (Chagrin Falls, OH)
|
| Diamond Productions Inc (Wayne, NJ)
|
| Diamond Tool Mfg (Plymouth, MI)
|
| Diamond Wheel Industries Inc (Ferndale, MI)
|
| Diamonds & Abrasives Co (Houston, TX)
|
| Dico Products Inc (Utica, NY)
|
| Donovan Resources (Denver, CO)
|
| Durawool Inc (Harrison, NY)
|
| Econoline Abrasive Products (Grand Haven, MI)
|
| Econ-O-Line Tools (Roseville, MI)
|
| Emerald Creek Garnet (Fernwood, ID)
|
| Engineered Abrasives Inc (Alsip, IL)
|
