Surface modification processing is a technology that alters the chemical composition,microstructure,or physical properties of a material’s surface(typically a few micrometers to a few millimeters deep)through physical,chemical,or mechanical means,without changing the overall characteristics of the material matrix.Its core objective is to endow the surface with specific functions(such as wear resistance,corrosion resistance,lubricity,or conductivity)while maintaining the original properties of the matrix,thereby extending product service life and enhancing reliability.It is widely applied in high-end industrial fields such as aerospace,automotive manufacturing,molds,and medical devices.We have production line for plasma(PTA)surfacing,high-velocity oxygen fuel(HVOF)spraying,laser cladding,and vacuum brazing,and provide solutions for various challenges faced by customers.