| 264 / | HD | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
| 138 | DF | WITH SEVERING, REMOVING MATERIAL FROM PREFORM MECHANICALLY, OR MECHANICALLY SUBDIVIDING WORKPIECE {10} |
| 145 | DF | .~ Forming continuous work followed by cutting {2} |
| 148 | DF | .~.~ Extruding followed by cutting to length {3} |
| 150 | | .~.~.~ Extruding hollow product |