| 扣環 | |||||
|---|---|---|---|---|---|
| 項目 | 標準牌號 | 單位 | 外徑 | 內徑 | 厚度 |
| CRTW | mm | 25 | 35.4 | 0.5 | |
| CRTW | mm | 30 | 40.4 | 0.5 | |
| CRTW | mm | 35 | 45.4 | 0.5 | |
| CRTW | mm | 36 | 46.5 | 0.5 | |
| CRTW | mm | 39 | 50.5 | 0.5 | |
| CRTW | inch | 0.157 | 0.325 | 0.01 | |
| CRTW | inch | 0.197 | 0.402 | 0.01 | |
| CRTW | inch | 0.236 | 0.482 | 0.01 | |
| CRTW | inch | 0.315 | 0.561 | 0.012 | |
| CRTW | inch | 0.354 | 0.6 | 0.012 | |
| CRTW | inch | 0.394 | 0.642 | 0.012 | |
| CRTW | inch | 0.433 | 0.681 | 0.012 | |
| CRTW | inch | 0.413 | 0.72 | 0.016 | |
| CRTW | inch | 0.433 | 0.795 | 0.02 | |
| CRTW | inch | 0.512 | 0.88 | 0.02 | |