The raw materials of the products are made of refined and high-quality chromium steel (AISI52100 manufacturing process, the processing equipment is sophisticated, and the testing means are complete. The products produced have the characteristics of long service life and high precision requirements. The products are widely used in household appliances, power tools, automobiles, motorcycles and automated office supplies, and are exported to Europe, the United States, Japan, Taiwan, etc., and are also supported by domestic bearing companies, enjoying a high