BENKAN 刁士
| No. | Size (OD) | a | z |
|---|---|---|---|
| R2215 | 22 x 15 | 60 | 15 |
| R2815 | 28 x 15 | 66 | 21 |
| R2822 | 28 x 22 | 64 | 16 |
| R3522 | 35 x 22 | 92 | 43 |
| R3528 | 35 x 28 | 79 | 30 |
| R4222 | 42 x 22 | 95 | 42 |
| R4228 | 42 x 28 | 84 | 35 |
| R4235 | 42 x 35 | 87 | 31 |
| R5422 | 54 x 22 | 110 | 52 |
| R5428 | 54 x 28 | 109 | 51 |
| R5435 | 54 x 35 | 102 | 41 |
| R5442 | 54 x 42 | 100 | 35 |
