Descripción
| REF | Tamaño (mm) | Fuerza (KG/LB) |
|---|---|---|
| SPR-2 | 0.7 x 5.0 | 26/58 |
| SPR-3 | 0.8 x 6.0 | 36/79 |
| SPR-4 | 0.9 x 7.0 | 51/112 |
| SPR-5 | 1.0 x 8.0 | 61/135 |
| SPR-6 | 1.1 x 8.0 | 74/163 |
| SPR-7 | 1.2 x 9.0 | 86/190 |
| SPR-8 | 1.4 x 10.5 | 105/232 |
| SPR-9 | 1.6 x 12.0 | 137/302 |
| SPR-10 | 1.8 x 14.3 | 158/349 |
| SPR-11 | 2.0 x 16.0 | 173/380 |
