DS4.5M
DS4.5M型（节距=4.5mm）
| 规格 | 节线长（mm) | 齿数 |
| DS4.5M450 | 450.0 | 100 |
| DS4.5M491 | 490.0 | 109 |
| DS4.5M504 | 504.0 | 112 |
| DS4.5M518 | 517.5 | 115 |
| DS4.5M558 | 558.0 | 124 |
| DS4.5M563 | 562.5 | 125 |
| DS4.5M612 | 612.0 | 136 |
| DS4.5M630 | 630.0 | 140 |
| DS4.5M711 | 711.0 | 158 |
| DS4.5M729 | 729.0 | 162 |
| DS4.5M801 | 801.0 | 178 |
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