OPTICAL FIBERS AND FIBER-OPTIC WIRES; OTHER OPTICAL FIBER CABLES EXCEPT CABLES OF HEADING 8544; SHEETS AND PLATES OF POLARIZING MATERIAL; LENSES (INCLUDING CONTACT) PRISMS MIRRORS AND OTHER OPTICAL ELEMENTS OF ANY MATERIAL N
OPTICAL FIBERS AND FIBER-OPTIC WIRES; OTHER OPTICAL FIBER CABLES EXCEPT CABLES OF HEADING 8544; SHEETS AND PLATES OF POLARIZING MATERIAL; LENSES (INCLUDING CONTACT) PRISMS MIRRORS AND OTHER OPTICAL ELEMENTS OF ANY MATERIAL N