| 摘要 |
<p>A tile has a face comprising a first and a second aggregate material, wherein the Moh's Hardness of the second aggregate material is at least 3 Moh's more than that of the first, and wherein the face is polished to provide a textured surface. The first aggregate material may be marble in amount 80 - 95 % and the second may be Flintag (Registered Trade Mark), carborundum or alumina., in amount 5 - 20 %: the surface may be polished using brushes coated with diamonds.</p> |
