Section 13 Articles of stone, plaster,cement,asbestos, mica or similar materials; ceramic products; glass and glassware 69 Ceramic products 69 07 Unglazed ceramic flags, paving, hearth or wall tiles; mozaic cubes, etc 69 07 40 Of a kind used for lining grinding mills, unglazed Commodity Code Description 69 07 40 10 Of a kind used for lining grinding mills, unglazed 69 07 40 21 Unglazed 69 07 40 22 Glazed 69 07 40 91 Unglazed 69 07 40 92 Glazed
