There are many silver plating processes, including bright silver plating, matte silver plating, thick silver plating, pearl silver plating, partial silver plating, continuous silver plating, brush silver plating, barrel silver plating, chemical silver plating, etc. It should be noted that the silver plating process of aluminum and aluminum alloys is much more complicated than that of ordinary copper products because the properties of aluminum and aluminum alloys are different from other metal materials. If the pretreatment is slightly improper, over-etching of the surface layer may easily occur. .