Taking to use Chemical Vapor Depostion(CVD) technics, to coat the silver layer on the glass surface uniformly, then cooper layer coated, finally two professional paint layers to be coated as protection. Silver mirror has the much-higher reflectivity than Al mirror, much better stability and durability. Easily for deep processing, more friendly to be used in humidity environments. Widely used in interior decoration, household and bathroom and other heavy-humidity environments.