In the era of high-precision manufacturing and premium product upgrading, surface treatment technology has become a core factor determining product durability, aesthetics and functional stability. Physical Vapor Deposition (PVD), as an advanced vacuum thin-film coating technology, has gradually become the preferred surface enhancement solution for global high-end industries, relying on its pure physical deposition mechanism and superior coating performance. Different from traditional coating and chemical deposition processes, PVD achieves surface modification through precise physical phase transformation, bringing unprecedented comprehensive benefits to various substrates.