Manufacturing and sales: electrical machinery and equipment, electronic products (excluding electronic publications) , household appliances, instruments, automobiles, motorcycle parts (licensed projects must obtain relevant administrative licenses before they can be operated); sales: motorcycles, building materials (excluding hazardous chemicals), chemical products (excluding hazardous chemicals and precursor chemicals); development and application of Internet of Things technology; development of smart water systems and application software; data processing; cloud computing; geographical information system research and development; development and application of water automation, information systems, information technology and data technology; electronics, communications and automatic control System development; new instrument manufacturing technology and software development; research, development, application, sales of network technology and related products and related technical consulting services, import and export of goods, technology import and export (excluding national prohibited or restricted business items); house leasing (excluding accommodation services), residential water and electricity installation and maintenance services, manufacturing of industrial automatic control system devices, sales of industrial automatic control system devices, sales of fire protection equipment, sales of metal products, wholesale of hardware products, sales of plastic products, sales of valves and cocks