| Part name | Material | 
|---|---|
| Mainspring | Stainless steel for spring | 
| Bracket | SPC trivalent chromate | 
| Wire | SUS nylon-coated product | 
| Mainspring case | PP | 
| Wire terminal | Brass | 
Note: The product photo shows the previous specification. In the current specification, the wire outlet section of the bracket has been changed to a burring grommet type.
 
 
 
 
 
 
