* Please contact Qinfeng promptly for detailed specifications and the latest product parameter information.
| SIZE | φD | T | L | R | SIZE | φD | T | L | R | |
| 12 | 12.7 | 1.5 | 7.9 | 19.1 | 76 | 76.2 | 2 | 36.7 | 88.5 | |
| 19 | 19.1 | 1.5 | 11.8 | 28.5 | 89 | 89 | 3 | 42.9 | 103.5 | |
| 25 | 25.4 | 1.5 | 13.9 | 33.5 | 102 | 101.6 | 2 | 52.6 | 127 | |
| 32 | 31.8 | 1.5 | 15.7 | 38 | 127 | 127 | 2 | 78.9 | 190.5 | |
| 38 | 38.1 | 1.5 | 20.1 | 48.5 | 152 | 152.4 | 2 | 94.7 | 228.6 | |
| 45 | 45 | 1.5 | 23.8 | 54 | 203 | 204 | 3 | 84.5 | 204 | |
| 51 | 50.8 | 1.5 | 25.1 | 60.5 | 219 | 219 | 3 | 84.5 | 204 | |
| 57 | 57 | 2 | 28.1 | 68 | 254 | 254 | 3 | 105.2 | 254 | |
| 63 | 63.5 | 2 | 34.6 | 83.5 |
The technical specifications of Qinfeng products are for reference only, and there may be slight differences between the actual product appearance and that shown in promotional materials.
Qinfeng reserves the right to update or modify product design and technical information, and will not provide prior notice to customers regarding updates and modifications.
Please contact Qinfeng promptly for detailed specifications and the latest product parameter information.
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