3920995970
- Other plates, sheets, film, foil and strip, of plastics, non-cellular and not reinforced, laminated, supported or similarly combined with other materials
- Of other plastics
- Of other plastics
- Of addition polymerisation products
- Other
- Other
- Tetrafluoroethylene film, put up in rolls, with: - a thickness of 50 µm, - a melting point of 260 °C, and - a specific gravity of 1,75 (ASTM D792) for use in the manufacture of semiconductor devices