A kind of diaphragm, vibrating diaphragm and moving-iron receiver

A kind of diaphragm, vibrating diaphragm and moving-iron receiver

  • CN 208,386,917 U
  • Filed: 07/13/2018
  • Issued: 01/15/2019
  • Est. Priority Date: 07/13/2018
  • Status: Active Grant
First Claim
Patent Images

1. a kind of diaphragm characterized by comprisingSubstrate, the substrate are made by plastic material;

  • Coating, plating are set to the surface of the substrate, and the coating is carbon-coating, for enhancing the rigidity of the substrate.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×