| 264 / | HD | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
| 165 | DF | FORMING CONTINUOUS OR INDEFINITE LENGTH WORK {8} |
| 169 | DF | .~ With prevention of equipment fouling accumulations or deposits {1} |
| 170 | ![]() | .~.~ By chemical additive to molding material or treating bath |