| 摘要 |
<p>The saw blade (1) comprises a first pattern (P1) wherein an unset tooth (a0) is preceded and followed by the teeth (b0, e1) both of which are right set teeth; a second pattern (P2) wherein an unset tooth (a2) is preceded and followed by the teeth (b2, E3) both of which are left set teeth; a third pattern (P3) wherein an unset tooth (a3) is preceded by a right set tooth (b3) and followed by a left set tooth (e4) and a fourth pattern (P4) wherein an unset tooth (a1) is preceded by a left set tooth (b1) and followed by a right set tooth (e2). <IMAGE></p> |
