| 摘要 |
<p>The method involves the blanks of ceramic material being shaped, dried and fired. After drying, the blanks are smoothed on their narrow side (2) to form a surface on which they stand. The tiles are smoothed by being ground or milled. The top folded side is smoothed. The narrow side has at least two protuberances (12,14) which are smoothed on the same plane, at right angles to the product's main plane.</p> |
