brief introduction： The contact block belongs to the switch accessories, its internal is mainly contact switch, it is a metal contact can make the circuit open, on, so that the current interrupt or make it flow to other circuit switches, the main components of the contact switch button, module, seat, step-down box. Switch contact materials, according to different requirements of the material used is not the same. In precision instruments, the switch is required to respond quickly, and silver is generally used as th

Contact Blocks

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