| 174 / | HD | ELECTRICITY: CONDUCTORS AND INSULATORS |
| 137 R | DF | INSULATORS {17} |
| 176 | DF | .~ With terminal elements {5} |
| 188 | ![]() | .~.~ Cap type {5} |
| 189 | DF | .~.~.~> Plastic material adhered |
| 190 | DF | .~.~.~> Divided cap |
| 191 | DF | .~.~.~> Clamps or clasps |
| 192 | DF | .~.~.~> Rings or wedges |
| 193 | DF | .~.~.~> Screw or bayonet |