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| Customization: | Available |
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| After-sales Service: | 1 Years |
| Warranty: | 1 Years |
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| OD(mm) | 16 | 20 | 25 | 31 |
| Thickness(mm) | 2.0 2.2 | 2.0 2.3 2.8 | 2.3 2.8 3.5 | 2.9 3.6 |
| Tolerance(mm) | 0.3 | |||









