| 174 / | HD | ELECTRICITY: CONDUCTORS AND INSULATORS |
| 68.1 | DF | CONDUITS, CABLES OR CONDUCTORS {15} |
| 110 R | DF | .~ Insulated {21} |
| 120 R | DF | .~.~ Plural or impregnated layers {7} |
| 122 R | ![]() | .~.~.~ Fibrous or fabric {2} |
| 122 G | DF | .~.~.~.~> Glass |
| 122 C | DF | .~.~.~.~> Coated |