General Projects: Sales of machinery and equipment, retail and wholesale of hardware products, sales of refrigeration and air conditioning equipment, sales of gas equipment, foreign contracting projects, sales of construction materials, sales of metal materials, sales of furniture, sales of lighting equipment, sales of building decoration materials, sales of security equipment, construction of garden greening projects, wholesale of kitchen and bathroom appliances and daily necessities, sales of daily commodities, sales of hardware and textiles and raw materials, sales of rail transit special equipment, key systems and components, management of municipal facilities (excluding environmental quality monitoring, source of pollution inspection services), human resources services (excluding employment agency activities, labor dispatching services), management consulting, sales of teaching instruments, sales of teaching models and teaching aids. (Excluding projects that require approval in accordance with laws and regulations, operations are conducted in accordance with the business license.)