福赛型号
| Fersa | 内直径（mm） | 外径（mm） | T（毫米） | 重量（Kg） |
|---|---|---|---|---|
| NKI 10/16 | 10.00 | 22.00 | 16.00 | 0.03 |
| NKI 10/20 | 10.00 | 22.00 | 20.00 | 0.04 |
| NKI 12/16 | 12.00 | 24.00 | 25.00 | 0.03 |
| NKI 20/16 | 20.00 | 32.00 | 16.00 | 0.05 |
| NKI 20/20 | 20.00 | 32.00 | 20.00 | 0.06 |
| NKI 22/16 | 22.00 | 34.00 | 16.00 | 0.05 |
| NKI 22/20 | 22.00 | 34.00 | 20.00 | 0.06 |
| NKI 25/20 | 25.00 | 38.00 | 20.00 | 0.08 |
| NKI 25/30 | 25.00 | 38.00 | 30.00 | 0.12 |
| NKI 28/20 | 28.00 | 42.00 | 20.00 | 0.09 |
| NKI 30/20 | 30.00 | 45.00 | 20.00 | 0.11 |
| NKI 30/30 | 30.00 | 45.00 | 30.00 | 0.16 |
| NKI 35/20 | 35.00 | 50.00 | 20.00 | 0.12 |
| NKI 40/30 | 40.00 | 55.00 | 30.00 | 0.20 |
| NRB 526828 | 82.55 | 107.35 | 44.45 | 0.98 |
| NRB IR 060908 | 9.53 | 14.29 | 12.95 | 0.01 |
| NRB IR 162016 | 25.40 | 31.75 | 25.65 | 0.05 |
| NRB IR 303920 | 38.10 | 47.63 | 31.75 | 0.22 |
| NRB IR 324116 | 41.28 | 50.80 | 25.40 | 0.19 |
| NRB IR 648040 | 101.60 | 127.00 | 63.50 | 2.27 |