3921190050
- Other plates, sheets, film, foil and strip, of plastics
- Cellular
- Of other plastics
- Other
- Porous membrane of polytetrafluorethylene (PTFE) laminated to a polyester spunbonded non-woven cloth with - a total thickness of more than 0,05 mm but not more than 0,20 mm, - a water entry pressure between 5 and 200 kPa according to ISO 811, and - an air permeability of 0,08 cm$3/cm$2/s or more according to ISO 5636-5