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Hardware shrapnel is a metal stamping parts, is a kind of use of flexibility to work mechanical spring parts. Electronic hardware materials category. English name: Metal shrapnel. Made of stainless steel or manganese after heat treatment is made, is an important part of the switch, with the metal sheet of the conductivity, in the operator and the product plays a role in the switch between the high quality. At the same time, the use of dome pieces of the stable rebound (pressed back automatically), and long life, to provide operators with high-quality tactile feedback.

Metal shrapnel made of metal shrapnel steel. Used to control the movement of the machine to ease the impact or vibration, saving energy, measuring the size of the force, widely used in machinery, instruments. The type of metal shrapnel is complex and diverse, according to the shape points, there are spiral metal shrapnel, scrolls metal shrapnel, sheet metal shrapnel and so on.

Spiral metal shrapnel that is twisted metal shrapnel, twisted to accept the deformation of the metal shrapnel, part of the work is also closely wound into a spiral. Reversing the end of the metal shrapnel structure is processed into various shapes of the torsion arm, instead of hook ring. Torsion leaf spring commonly used in mechanical balance mechanism, automotive, machine tools, electrical appliances and other industrial production widely used