242 / | HD | WINDING, TENSIONING, OR GUIDING |
520 | DF | CONVOLUTE WINDING OF MATERIAL {17} |
522 | DF | .~ With cutting, perforating, or notching {4} |
525 | DF | .~.~ Longitudinal cutting {5} |
525.6 | .~.~.~ By rotary slitter disk {1} | |
525.7 | DF | .~.~.~.~> With reactive material support surface |