Hardware springs are also known as metal springs. A mechanical part that USES elasticity to work.
The general hardware spring is made of spring steel to control the movement of the machine, to mitigate the shock or shock, to store.
According to the force nature, the hardware spring can be divided into stretching spring, compression spring, torsion spring and bending spring. The shape can be divided into disc spring, ring spring, plate spring, coil spring and truncated spiral。

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