| 摘要 |
<p>Sleeve (55) of abrasive material for sanding-smoothing machines including at least one operative roller includes an external layer of abrasive material and an inner layer of a soft material (M) fixed to the external layer by suitable adhesive means. The inner layer adheres to the tensing roller (5) and to the operative roller (50) of a sanding-smoothing machine (3). The inner layer (11) interacts with the external layer, so as to flatten in a working area set in contact with the floor below. <IMAGE></p> |
