Thickness: 0.15 ~ 20mm

This is a type of spring in which the wire or steel band is wound
Into a plane helical. One end of the spring is fixed, while the
Other end, once being subjected to a given torsion, will generate
An elastic bend deformation by which the spring will twist within
Its plane. The more the turns, the larger the deformation angle,
And the higher the stored energy.

This type of product is usually used as a compacting spring or
Energy-storage spring in instruments, watches and clocks.

Inner packing: Plastic or PE bags

Outer packing: Corrugated cartons or wooden boxes