As the manufacturing industry accelerates its transformation toward refinement, environmental sustainability and high-end development, the market keeps raising requirements for the accuracy, environmental friendliness, stability and functionality of workpiece surface treatment processes. The drawbacks of traditional spraying, conventional electroplating and outdated coating processes have gradually emerged, making them difficult to meet the production demands of high-end manufacturing and complex working conditions. With its advanced preparation process and diversified and stable performance advantages, chromium nitride coating has gradually become a mainstream upgraded solution in the field of industrial surface treatment.

PVD nano-coating is a mainstream precision coating technology in the current industrial surface treatment field. Its full name is Physical Vapor Deposition nano-coating. It forms a dense nano-scale thin film on the surface of various substrates through physical deposition processes under vacuum conditions. Different from traditional surface treatment methods such as spraying and electroplating, this technology does not rely