The description of the item 3921190045 of France HScode: Plates, sheets, film, foil and strip, of cellular plastic, unworked or merely surface-worked or merely cut into squares or rectangles (excl.those of polymers of styrene, vinyl chloride, polyurethanes and regenerated cellulose, self-adhesive products, floor, wall and ceiling coverings of heading 3918 and sterile surgical or dental adhesion barriers of subheading 3006.10.30) : Microporous monolayer film of polypropylene or a microporous trilayer film of polypropylene, polyethylene and polypropylene, each film with:-zero transversal production direction (TD) shrinkage,-a total thickness of 8 ?m or more, but not more than 50 ?m,-a width of 15 mm or more, but not more than 900 mm,-a length of more than 200 m, but not more than 8 000 m,-an average pore size between 0,02 ?m and 0,1 ?m-laminated or not with a Polypropylene non-woven mat of 50 to 200 µm thickness-coated or not with surfactant-coated or not on 1 or 2 sides with a ceramic layer of min 1 µm thickness or more, but not more than 5 µm-coated or not on 1 or 2 sides with a sticky binder, PVdF type or similar of min 0,5 µm thickness or more, but not more than 5 µm