| 摘要 |
<p>The circular saw blade (1.1) has teeth of unequal depths and unequal tooth pitches. Different tooth profiles or unequal widths of tooth face are provided so that the tooth pitch (T1) before the low tooth (5) is small and the higher tooth is a trapezoid tooth (6). The low flat tooth has a larger width of tooth face (S5) than the width of tooth face of the trapezoid tooth. The higher tooth also has a flat tooth (8) which has a smaller tooth face width than the width of the tooth face of the flat tooth.</p> |
