| Specification(Outer Diameter*Thickness) | quantity |
| 3*2 | 18 |
| 4*2 | 18 |
| 6*2 | 18 |
| 7*2 | 18 |
| 8*2 | 18 |
| 10*2 | 18 |
| 10*2.5 | 14 |
| 11*2.5 | 14 |
| 12*2.5 | 14 |
| 14*2.5 | 14 |
| 16*2.5 | 14 |
| 17*2.5 | 14 |
| 19*2.5 | 14 |
| 19*3 | 12 |
| 20*3 | 12 |
| 22*3 | 12 |
| 24*3 | 12 |
| 25*3 | 12 |
| 27*3 | 12 |
| 28*3 | 12 |
| 30*3 | 12 |
| 32*3 | 12 |
| 33*3 | 12 |
| 35*3 | 12 |
| 36*3 | 12 |
| 37*4 | 9 |
| 38*4 | 9 |
| 42*4 | 9 |
| 45*4 | 9 |
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