| 57 / | HD | TEXTILES: SPINNING, TWISTING, AND TWINING |
| 200 | DF | STRAND STRUCTURE {11} |
| 210 | DF | .~ Covered or wrapped {10} |
| 212 | DF | .~.~ Wire wrapped {4} |
| 218 | ![]() | .~.~.~ Stranded wire-wrapped layer {3} |
| 219 | DF | .~.~.~.~> Including nonround cross section |
| 220 | DF | .~.~.~.~> With core other than wire |
| 221 | DF | .~.~.~.~> Coated or impregnated |