Manufacturing and sales of instruments and meters
Manufacturing and sales of electrical instruments
Manufacturing and sales of electronic measurement instruments
Manufacturing of environmental monitoring instruments and devices
Manufacturing of semiconductor equipment, environmental protection equipment, geological exploration equipment, traffic safety and control equipment
Manufacturing of CNC machine tools, micro-special motors and components, power distribution and control equipment, electrical signal devices
Leasing services (excluding licensed services)
Technical services, development, consulting, exchange, transfer, and promotion
Import and export of goods
Repair of instruments and meters
Leasing of mechanical equipment
Manufacturing and sales of intelligent instruments and meters, electronics, cameras, and equipment
Sales of medical devices (Class I & II)
Sales and repair of communication equipment
Sales of chemical products