Wire and cable manufacturing; construction project design; construction project construction; residential interior decoration; real estate development and operation. General items: wire and cable operation; distribution switch control equipment manufacturing; distribution switch control equipment sales; power facility equipment manufacturing; power facility equipment sales; mechanical and electrical equipment manufacturing; mechanical and electrical equipment sales; electrical equipment sales; electrical auxiliary parts manufacturing; electrical auxiliary parts sales; power electronic component manufacturing; power electronic component sales; electronic component manufacturing; electronic component retail; electronic component wholesale; electrical instrumentation Table manufacturing; sales of electrical instruments and meters; sales of instruments and meters; sales of instruments and meters; manufacturing of communication equipment; sales of communication equipment; manufacturing of metal structures; sales of metal structures; manufacturing of metal wire ropes and their products; sales of metal wire ropes and their products; manufacturing of metal signs for transportation and public administration; sales of signs for transportation and public administration; clothing manufacturing; wholesale of clothing and clothing; retail of clothing and clothing; manufacturing of special electronic materials; sales of special electronic materials ; Manufacturing of metal chains and other metal products; Sales of metal chains and other metal products; Electroplating processing; Quenching processing; Spraying processing; Metal surface treatment and heat treatment processing; Hardware product manufacturing; Hardware product wholesale; Hardware product retail; Plastic product sales; Plastic product manufacturing; Tourism development project planning consulting; Goods import and export; Technology import and export; Internet of Things application services; Internet of Things technical services; Internet of Things technology research and development; Technology Services, technology development, technology consulting, technology exchange, technology transfer, technology promotion; intellectual property services (except patent agency services); information consulting services (excluding licensing information consulting services); wholesale of auto parts and accessories; retail of auto parts and accessories; wholesale of motorcycles and spare parts; retail of motorcycles and spare parts; sales of new energy vehicle electrical accessories; sales of new energy prime mover equipment; sales of special equipment for environmental protection; sales of battery spare parts.