Agricultural product processing machinery, light industrial machinery, food machinery, beverage machinery, dairy machinery, liquid filling machinery, packaging machinery product manufacturing and processing, as well as software development and production line research, design and development; self-operated and agent import and export business of the above-mentioned various products and technologies (except for national restrictions or prohibitions on enterprise operations); development and sales of electrical engineering accessories, low-voltage distribution cabinets, bridges, central control systems containing the production process, and various software; equipment leasing, self-owned house leasing, and food sales.