Usage: Presser plate on the panel of a portable music player
Material: SUS304csp-H
Plate thickness: 0.15 mm
Progressive Die

There is also a leaf spring element, and if the shapes of the eight springs are not equal, the load will not be applied evenly.
Since there is a large cut-out area and the SUS spring material is bent into a box, it has a shape that causes a large amount of twisting, but the twisting is reduced as much as possible.