Electroplating technology in the aerospace industry is a new field for plating metal substrates and non-metal substrates (such as plastics and other synthetic materials). The application of electroplating technology is quite important in the mechanical, electronic, and decorative plating fields, which can improve wear resistance, temperature resistance, corrosion resistance, and friction coefficient and sliding friction coefficient (such as screws and other fasteners). It also has a considerable improvement effect on contact resistance, conductivity, and shielding. The decorative application is to improve its brightness, matte or satin effect, and other appearance effects.