Insulating layer: coating on the electrode or hanging fixture, a part of the surface of the part of conductive material layer.

The night sky is very clear today, and the moon hanging in the sky like a tracts, the whole city is enveloped by the light of the moon light, all as if covered with a layer of white veils.

For cage layer feature to improve the flexibility of the glasses, glasses easy to avoid the general hanging cage, easy to fall off the shortcomings significantly improve the results.