Copolymer of noncellular acrylic and methacrylic esters, in the form of film of a thickness of < 150 micrometres
Plates, sheets, foil, film and strip of noncellular acrylic polymers, not reinforced, coated, laminated or similarly combined with other materials, without backing, unworked or merely surfaceworked or merely cut into squares or rectangles (excl. those of poly"methyl methacrylate", selfadhesive products and floor, wall and ceiling coverings of heading 3918, and copolymer of acrylic and methacrylic esters in the form of film of a thickness of < 150 micrometres)