This is to heat and evaporate the metal or metal compound by physical means under vacuum conditions, so that the steam solidifies on the surface of the plastic toy to form a uniform metal film, producing the metal effect of imitating silver, imitating gold, and imitating copper. Plastic electroplating is suitable for toys of various shapes, but there are many colors, and the surface will conduct electricity. Vacuum electroplating refers to the deposition of a certain metal or metal compound on the surface of the material in the form of gas in a vacuum environment (usually long and short metal materials), which belongs to the physical vapor deposition process. Because the coating is often a metal film, it is also called vacuum coating. Also known as vacuum electroplating (mainly if it replaces traditional water electroplating with severe purification). The main function of vacuum electroplating is to give the surface of the plated parts a high degree of metallic luster and mirror effect, to make the film layer have excellent insulation performance on the thin film material, and to provide excellent electromagnetic shielding and conductive effects.