Power distribution switchgear equipment manufacturing; Power distribution switchgear equipment sales; Power distribution switchgear equipment research and development; Mechanical and electrical equipment manufacturing; Mechanical and electrical equipment sales; Industrial automatic control system device manufacturing; Industrial automatic control system device sales; Smart instrument and meter manufacturing; Smart instrument and meter sales; Capacitor and supporting equipment manufacturing; Capacitor and supporting equipment sales; High-speed rail equipment and accessory sales; Railway locomotive vehicle accessory sales; Communication equipment manufacturing; Communication equipment sales; Communication equipment repair; Lighting appliance sales; Power electronic component sales; Electronic components and electromechanical component equipment sales; Electrical equipment material sales; Advanced power electronic device sales; Electrical signal equipment device sales; Residential water and electricity installation and maintenance services; Electrical instrument and meter sales; Anti-corrosion material sales; Metal tool sales; Pneumatic power machinery and component sales; Power transmission and distribution and control equipment manufacturing; Smart power transmission and distribution and control equipment sales; Household appliance sales; Fire-fighting equipment sales; Security equipment sales; Wire and cable operations; Instrument and meter sales; Metal cutting and welding equipment sales; Furnace, melting furnace, and electric furnace sales; Refractory material sales; Electrical equipment sales; Packaging material and product sales; Hardware product retail; Photovoltaic equipment and component sales; Satellite mobile communication terminal sales; Glass fiber reinforced plastic product sales; Technical services, technology development, technical consultation, technical exchange, technology transfer, and technology promotion; Advertising design and agency; Electric vehicle charging infrastructure operation. (Branch business location: Qianyao Village, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province (within Zhejiang Hongzan New Material Technology Co., Ltd.))