Natural scientific research and experimental development; engineering and technological research and experimental development; new material technology research and development; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; software development; metal structure manufacturing; metal daily necessities manufacturing; renewable resource processing; metal product sales; metal material sales; packaging materials and products sales; Internet sales (except for the sale of goods requiring licenses); renewable resource sales; import and export of goods; hotel management; catering management Sales of daily necessities; retail sales of cosmetics; retail sales of daily household appliances; sales of daily necessities; packaging services; standardized services; supply chain management services; office services; leasing services (excluding licensed leasing services); housing leasing; non-residential real estate leasing; unit logistics management services; productive scrap metal recycling; business management consulting; business management; commercial complex management services; loading and unloading; business training (excluding education training, vocational skills training and other training that require a license). Licensed items: food sales; catering services; lifestyle beauty services; road cargo transportation (excluding dangerous goods); Class II value-added telecommunications services; Internet live broadcast technology services; online data processing and transaction processing services (business e-commerce); accommodation services.