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全国咨询热线：
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单位：英寸（inch）
| (inch) | P | k max | k min | s max | s min | dw max | dw min |
|---|---|---|---|---|---|---|---|
| 1/4 | 20|26 | 0.2 | 0.19 | 0.445 | 0.438 | 0.428 | 0.418 |
| 5/16 | 18|22 | 0.25 | 0.24 | 0.525 | 0.518 | 0.508 | 0.498 |
| 3/8 | 16|20 | 0.312 | 0.302 | 0.6 | 0.592 | 0.582 | 0.572 |
| 7/16 | 14|18 | 0.375 | 0.365 | 0.71 | 0.702 | 0.69 | 0.68 |
| 1/2 | 12|16 | 0.437 | 0.427 | 0.82 | 0.812 | 0.8 | 0.79 |
| 9/16 | 12|16 | 0.5 | 0.49 | 0.92 | 0.912 | 0.9 | 0.89 |
| 5/8 | 11|14 | 0.562 | 0.552 | 1.01 | 1 | 0.985 | 0.975 |
| 3/4 | 10|12 | 0.687 | 0.677 | 1.2 | 1.19 | 1.175 | 1.165 |
| 7/8 | 9|11 | 0.75 | 0.74 | 1.3 | 1.288 | 1.273 | 1.263 |
| 1 | 8|10 | 0.875 | 0.865 | 1.48 | 1.468 | 1.453 | 1.443 |
| 1-1/8 | 7|9 | 1 | 0.99 | 1.67 | 1.64 | 1.62 | 1.61 |
| 1-1/4 | 7|9 | 1.125 | 1.105 | 1.86 | 1.815 | 1.795 | 1.785 |
| 1-3/8 | 8 | 1.25 | 1.23 | 2.05 | 2.005 | 1.985 | 1.975 |
| 1-1/2 | 6|8 | 1.375 | 1.355 | 2.22 | 2.175 | 2.155 | 2.145 |
| 1-3/4 | 5|7 | 1.625 | 1.605 | 2.58 | 2.52 | 2.495 | 2.485 |
| 2 | 4.5|7 | 1.75 | 1.73 | 2.76 | 2.7 | 2.675 | 2.665 |
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