Especialistas em Ortodontia
| Model | Big |
| Size | 16*22 |
| Brand | Unbranded |
| Type | Crimpable Hook |
| Intended Use/Discipline | Orthodontics |
The ends of torsion springs are attached to other components, and when those components rotate around the center of the spring, the spring tries to push them back to their original position. This type of spring is normally close wound but can have pitch to reduce friction between the coils.
