The general business items are: technical development and sales of instruments, meters, industrial electromechanical equipment, intelligent equipment, hardware, electrical and related components, computer software and hardware, electronic electromechanical equipment, electronic components, automated control systems, photovoltaic products, integrating spheres, automated assembly lines, darkroom test systems, laser marking equipment SMT equipment, lead-free equipment wave soldering machines, reflow soldering machines, fully automatic printing machines, coating machines; domestic trade, import and export of goods and technology.