Our company mainly engages in research and development, technical consulting, sales, and maintenance of mechanical equipment for construction projects, mining machinery, and agricultural machinery; Research and development, technical consultation, and sales of computer software and hardware, teaching instrument technology; Sales of daily necessities, stationery, personal labor safety protection equipment, household goods, glass products, office machinery and equipment, solar energy equipment, wood, and chemical products (excluding hazardous chemicals); Book retail; Import and export of goods or technologies (excluding goods and technologies prohibited by the state or involving administrative approval). (Projects that require approval according to law can only be operated with the approval of relevant departments)