Manufacturing of building decoration, plumbing pipe fittings, and other metal products for construction; road freight transport of ordinary goods with total mass of 4.5 tons or less (excluding online freight and dangerous goods); international freight forwarding; domestic freight forwarding; manufacturing and sales of hand carts and animal-drawn vehicles; manufacturing and sales of metal cutting machine tools; manufacturing of general equipment (excluding special equipment); manufacturing of specialized equipment for glass, ceramics, and enamel products; sales of mechanical equipment; sales of used goods; manufacturing and sales of refrigeration and air conditioning equipment; repair of general equipment; sales of solar thermal utilization equipment; leasing of mechanical equipment; sales of building decoration materials; manufacturing of new building materials (excluding hazardous chemicals); manufacturing of specialized equipment (excluding licensed specialized equipment); information consulting services (excluding licensed information consulting services); industrial engineering design services; sales of anti-corrosion materials; sales of insulation materials; internet sales (excluding goods requiring sales permits); manufacturing and sales of enamel products; spray coating processing; wholesale of hardware products; sales of solar thermal power generation products; sales of daily necessities; sales of mechanical and electrical equipment; sales of power electronic components; indoor wooden door and window installation services; furniture installation and repair services; contracting of external projects; sales of offshore wind power related equipment; advertising production; leasing services (excluding licensed leasing services); domestic trade agency; sales of recycled resources; sales of coatings (excluding hazardous chemicals); sales of chemical products (excluding licensed chemical products); sales of building materials; import and export of goods and technologies; import and export agency; manufacturing and sales of furniture; wood processing; sales of wood; manufacturing of metal fittings for construction; installation services for general mechanical equipment; manufacturing of metal tools; engineering management services; sales of metal materials; manufacturing of metal signs for traffic and public management; sales of traffic and public management signs; manufacturing and sales of painting equipment; loading and unloading services.