It is made of steel plate as the base body, sintered spherical bronze powder in the middle, and rolled PTFE and the mixture on the surface. It has the characteristics of low friction coefficient, wear resistance, good corrosion resistance and oil-free lubrication. It can reduce costs, reduce mechanical volume, avoid shaft biting, and reduce noise. Products have been widely used in the sliding parts of various machinery, such as: printing machines, textile machines, tobacco machinery, automobiles, motorcycles, and agricultural and forestry machinery.