| 摘要 |
<p>A rotary saw blade, comprising a series of outward tapering toothlike radial projections (15) on and around a circular core of a base plate of metal (14).</p><p>Each of said projections comprises a leading surface which is inclined at an acute angle to the periphery of the core and deposited with abrasive particules held in a layer comprising metal.</p> |
