Slider Spring Steel
Slider spring steel is fixed into zipper slider by slider cap(crown) and spring assembly machine.
Slider Spring Steel
Feature:
1.Slider spring steel roller is used for auto lock zipper slider.
2.Slider spring steel is fixed into zipper slider by slider cap(crown) and spring assembly machine.
3.There are different kinds quality for different requirement.
4.Best quality can over 0.8mm magnet testing.