General project: Manufacturing of distribution switch control equipment; Hardware product manufacturing; General equipment manufacturing (excluding special equipment manufacturing); Sales of electrical accessories; Research and development of efficient and energy-saving technologies in the power industry; Research and development of hardware products; Manufacturing of power facilities and equipment; Sales of generators and generator sets; Research and development of distribution switch control equipment; Manufacturing of mechanical and electrical equipment; Retail of hardware products; Sales of distribution switch control equipment; Sales of instruments and meters; Manufacturing of instruments and meters; Manufacturing of lighting fixtures; Sales of lighting fixtures; Sales of plastic products; Manufacturing of plastic products; Wholesale of hardware products; Sales of power electronic components;