With the continuous development of science and technology, 3C digital electronic consumer products occupy a large market share. Consumers have higher and higher requirements for digital products. Both in performance and appearance, they need to be constantly improved to meet the requirements of consumer groups, so as to occupy a place in the fierce competition of digital consumer market. PVD coating technology solves a series of problems for digital enterprises. Taking mobile phones as an example, most mobile phone accessories need PVD coating process. For example, metal frame can be plated with ipg1n14, ipg2n18, IPG rose gold, IPS white steel, IPS white chromium, IP furnace rose gold, IPB caffeine, IP chromium, IP titanium, IPB black, gun, etc., optical films such as AR and AF can be plated on glass cover, and AR, AF and other optical films can be plated on the back cover Decorative films such as gradient color, color film, infrared cut-off and hard film are plated on the lens.