Optical non-conductive vacuum metal plating (ncvm) is a new coating technology, which can achieve the final appearance of metal facing and unique metal color effect by plating chromium, nickel and aluminum. This process not only beautifies the product, but also realizes the non-conductive function, but does not affect the influence of wireless communication transmission on a variety of electronic devices.

Due to the market demand for metal color surface decoration and environmental protection, vacuum process has replaced electroplating products. When the communication products send or receive signals, the electromagnetic field generated will not be accumulated by the conductive coating. Thus, the interference to RF and ESD (electrostatic discharge) performance of communication products is avoided, so that communication products can have better reception effect and reduce noise.

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