| Naics index | Naics index description |
|---|---|
| 325194 | Nitrosated hydrocarbon derivatives manufacturing |
| 325194 | Oak extract manufacturing |
| 325194 | Oils made by distillation of coal tar |
| 325194 | Oils, wood, made by distillation of wood |
| 325194 | Orthodichlorobenzene manufacturing |
| 325194 | Phenol manufacturing |
| 325194 | Phthalic anhydride manufacturing |
| 325194 | Pine oil manufacturing |
| 325194 | Pinene manufacturing |
| 325194 | Pitch made by distillation of coal tar |