| 264 / | HD | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
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| 165 | DF | FORMING CONTINUOUS OR INDEFINITE LENGTH WORK {8} |
| 171.1 | DF | .~ Layered, stratified traversely of length, or multiphase macrostructure containing material (e.g., conjugate, composite, islands-in-sea, core-sheath, etc.) {8} |
| 173.11 | DF | .~.~ Having three or more layers of at least two different compositions {1} |
| 173.12 |  | .~.~.~ Melt extrusion (e.g., co-extrusion, etc.) {3} |
| 173.13 | DF | .~.~.~.~> Vinylidene chloride or fluoride containing layer |
| 173.14 | DF | .~.~.~.~> Polyamide (e.g., nylon, etc.) or addition polymer of at least one monoethylenically unsaturated monomer (e.g., polyethylene, polypropylene, polystyrene, etc.) containing layer |
| 173.15 | DF | .~.~.~.~> Including subsequent reshaping (e.g., stretching, etc.) |