Special precision bearings, non-standard special-shaped bearings, silent, high-precision, high-speed and long-life mainframe supporting bearings, special bearings for new energy vehicles, automotive hub bearings, roller bearings, special bearing products and accessories, universal joints, transmission systems, mechanical equipment, Instrumentation, laboratory equipment, computer software and hardware and external auxiliary equipment technology development, technical consultation, technology transfer; business management services; bearing manufacturing special equipment and accessories, metal materials, lubricating grease products, bearing inspection and testing special instruments; machine tools and accessories ;Agricultural machinery and accessories; engineering machinery and accessories, wear-resistant materials and manufacturing equipment, elevator accessories, entertainment facilities and accessories, plastic products, rubber products, mechanical and electrical equipment products, hardware and electrical tools, building materials, labor protection supplies, reducer chains , Motors, water pumps, sales of stationery and office supplies; undertaking of conferences and exhibitions; machinery and equipment leasing; intellectual property agency; certification services, testing services; corporate marketing planning, corporate image design; business information consulting, translation services; computer animation design, graphics and text Design; economic information consulting; computer network engineering design and construction; design and production, advertising agency; import and export of goods or technologies (except for the import and export of goods and technologies that are prohibited by the state or involve administrative approval). (Projects that are subject to approval in accordance with the law can be operated only after being approved by relevant departments.)