Film backing in rolls or strips for use as carriers for sensitised surfaces in the manufacture of films, of noncellular cellulose acetate
Plates, sheets, film, foil, tape and strip of noncellular cellulose acetates, not reinforced, laminated, supported or similarly combined with other materials, not worked or only surfaceworked, or only cut to rectangular, incl. square, shapes (excl. film in rolls or in strips, for cinematography or photography, selfadhesive products, and floor, wall and ceiling coverings in heading 3918)