| Fersa | 内直径(mm) | 外径(mm) | T(毫米) | 重量(Kg) |
|---|---|---|---|---|
| FDRK 438 OB | - | - | - | 16.90 |
| FDRK 438A | - | - | - | 17.50 |
| FDRK 438A OB | - | - | - | 16.90 |
| FDRK 439 | - | - | - | 17.10 |
| FDRK 439 OB | - | - | - | 16.20 |
| FDRK 4390 | - | - | - | 6.20 |
| FDRK 4390 OB | - | - | - | 5.80 |
| FDRK 4395 | - | - | - | 12.20 |
| FDRK 4396 | - | - | - | 11.50 |
| FDRK 4396 OB | - | - | - | 11.00 |
| FDRK 4396 OB X | - | - | - | 10.20 |
| FDRK 4396 P | - | - | - | 11.50 |
| FDRK 439A | - | - | - | 16.70 |
| FDRK 439A OB | - | - | - | 15.80 |
| FDRK 4400 | - | - | - | 6.80 |
| FDRK 4400 OB | - | - | - | 6.30 |
| FDRK 4405 | - | - | - | 11.80 |
| FDRK 4406 | - | - | - | 11.30 |
| FDRK 4406 OB | - | - | - | 10.70 |
| FDRK 4406 P | - | - | - | 11.30 |