| Fersa | 内直径(mm) | 外径(mm) | T(毫米) | 重量(Kg) |
|---|---|---|---|---|
| FDRK 442A OB | - | - | - | 17.30 |
| FDRK 443 | - | - | - | 15.00 |
| FDRK 443 OB | - | - | - | 17.80 |
| FDRK 4435 | - | - | - | 16.10 |
| FDRK 4435 OB | - | - | - | 16.10 |
| FDRK 4436 | - | - | - | 16.10 |
| FDRK 4437 | - | - | - | 14.90 |
| FDRK 443A | - | - | - | 18.30 |
| FDRK 443A OB | - | - | - | 18.20 |
| FDRK 444 | - | - | - | 16.60 |
| FDRK 444 OB | - | - | - | 17.00 |
| FDRK 4440 | - | - | - | 18.40 |
| FDRK 4440 OB | - | - | - | 18.00 |
| FDRK 4441 | - | - | - | 17.20 |
| FDRK 4441 OB | - | - | - | 16.80 |
| FDRK 4443 | - | - | - | 14.40 |
| FDRK 444A | - | - | - | 17.80 |
| FDRK 444A OB | - | - | - | 16.69 |
| FDRK 449 | - | - | - | 10.80 |
| FDRK 449 OB | - | - | - | 10.40 |