| 摘要 |
<p>The block to be cut is pushed back by a cross-bar (3) along the workbench (1) so as to undergo the action of two series of diamond blades. Said blades are mounted on two frames moving alternately in two opposite directions so as to both balance stresses and allow a more economical operation, without having to resort to grit. The surfaces of the slab thus obtained are practically already polished.</p> |
