| 摘要 |
<p>The grid line grinding material consists of a fabric layer (1) with a covering or resin and grinding grains. The crossing points (6) of the threads (3, 4) form grinding points spaced out in a grid over the surface (7) of the grinding material and leaving free points (8) at which there is no grinding effect. A gripping layer (10) on the grinding material makes it easier to handle. After the initial treatment and checking of the surface, the material is used manually to remove irregularities.</p> |
