General projects: technology development, technical consultation, technology transfer, technology promotion and technical service of new materials; technology development, technical consultation, technology transfer, technology promotion and technical service of biotechnology and products; technical service, technical development, technical consultation, technical exchange, technology transfer and technology promotion in medical field; technical development and consultation of computer technology , technology transfer, technology promotion and technical service; technology development, technical consultation, technology transfer, technology promotion and technical service in the field of network science and technology; sales of chemical raw materials (excluding dangerous chemicals); sales of chemical products (excluding dangerous chemicals); sales of mechanical equipment and accessories; sales of daily necessities; sales of instruments and accessories; sales of environmental protection equipment; communication Sales of equipment; sales of electronic components; sales of electronic products; e-commerce (those prohibited by laws and regulations shall not be operated; those that should be examined and approved shall not be operated before approval; those without approval shall be carried out independently); sales of primary agricultural products; import and export of goods; import and export of Technology (except for the items that need to be approved according to law, business license shall be used in accordance with the law) Carry out business activities independently)