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| SGL Carbon Corp. 8600 Bill Ficklin Drive - Charlotte, NC 28269 USA - - | |
| Atlantic Precision Spring, Inc. | ||
| Ningbo BestKey Electronic & Electrical Factory | ||
| Brainin Advance Industries | ||
| Kirkwood Industries | ||
| Helwig Carbon Products | ||
| Repco, Inc. | ||
| Hoyt Corporation | ||
| Graphalloy Graphite Metallizing Corporation | ||
| M.I. Watson Electric Limited | ||
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