| 335991 |
Contacts, electrical, carbon and graphite, manufacturing |
| 335991 |
Electrodes for thermal and electrolytic uses, carbon and graphite, manufacturing |
| 335991 |
Fibers, carbon and graphite, manufacturing |
| 335991 |
Graphite electrodes and contacts, electric, manufacturing |
| 335991 |
Graphite specialties for aerospace use (except gaskets) manufacturing |
| 335991 |
Graphite specialties for electrical use manufacturing |
| 335991 |
Graphite specialties for mechanical use (except gaskets) manufacturing |
| 335991 |
Heat shields, carbon or graphite, manufacturing |
| 335991 |
Lighting carbons manufacturing |
| 335991 |
Metal-graphite products manufacturing |