Assembling high and low voltage switchgear; sales and research and development of industrial electrical automation system equipment, power grid power quality management system equipment, intelligent energy-saving electrical equipment; software development; development of new energy technology and communication technology; technology promotion and technical services; sales of instrumentation, electronic products, Wujinjiaodian; leasing equipment; engineering information consulting (excluding intermediary services); contract energy management; production of high and low voltage complete sets of switchgear, ring network cabinets, ring network boxes, assembled substations, high-voltage cable branch boxes, outdoor AC high-voltage vacuum