6802109000

其他石料制砖、瓦、方块及类似品，不论是否为矩形（包括正方形），其最大面以可置入边长小于7厘米的方格为限；其他石料制人工染色的石粒、石片及石粉

Tiles ,cubes and similar articles,of other materials(the largest surface area of which is capable of being enclosed in a square the side of which is less than 7cm,except slate,but including mosaic cubes of slate)