Import and export of goods, technology import and export, road cargo transportation (excluding dangerous goods) General projects: manufacturing of lightweight building materials, manufacturing of household products, sales of building materials, sales of building decoration materials, software development, leasing of construction machinery and equipment, leasing of machinery and equipment, sales of daily necessities, sales of labor protection products, wholesale of automobile parts, wholesale of motorcycles and spare parts, retail of motorcycles and spare parts, wholesale of hardware products, sales of agricultural machinery, operation of wires and cables, sales of bearings, sales of valves and cocks, sales of household appliances, and retail of household appliances. Sales of accessories, retail of arts and crafts and collectibles (except ivory and its products), sales of knitted textiles and raw materials, sales of plastic products, sales of rubber products, sales of construction engineering machinery, sales of refractory materials, sales of non-ferrous metal alloys, sales of security equipment, sales of electronic products, bidding agency services, retail of computer software, hardware and auxiliary equipment, sales of office supplies, sales of instruments and meters, general cargo warehousing services (excluding hazardous chemicals and other items requiring license approval)