Production, processing and sales: high and low voltage complete sets of power distribution equipment, valves and accessories, pipes and accessories, transformers, cable trays, automated measurement and control devices, electrical components, instruments and meters, electromechanical products (the above items involve licensing, the details are subject to the approval of the approval authority); power equipment and accessories, lamps, Wujiaodian, communication equipment (except for national patents) controlled products), motorcycle parts, auto parts, metal materials, decorative materials, building materials, chemical materials (except hazardous chemicals), wires and cables, rubber products, labor protection products (except nationally controlled products), daily necessities, plumbing equipment, electronic equipment, electronic products (except nationally controlled products); power transmission and transformation projects (operated with qualification certificates).