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| Advanced Ceramics Corporation | |
| National Specialty Products | ||
| SGL Carbon Corp. 8600 Bill Ficklin Drive - Charlotte, NC 28269 USA - - | ||
| Graphite India Ltd, Graphite Electrode Division | ||
| Garlock Sealing Technologies | ||
| Durabla Manufacturing Co. | ||
| LCG Liaoyang Carbon Group | ||
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