Water conservancy maintenance, House renovation, Smooth road、 Land leveling, Street light installation, Steel structure engineering, Building decoration and renovation projects,Water conservancy and hydropower equipment installation; Sale: Building decoration materials, security equipment, Home appliances, furniture, Doors and Windows, Daily necessities, Handicrafts, lamps, bedding, office supplies, sanitary ware, ceramic products, kitchen supplies, Hardware and Electrical, glass products, rubber products; Metal product processing and sales; Electronic equipment installation and sales: Computer network integrated cabling; Construction machinery rental。; Import and export of goods; Technology import and export; Import and export agent; State-owned trading companies manage the import and export of goods; International freight forwarding( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)