The general business items are: Relay, temperature controller, time relay, solid state relays, circuit breakers, ac contactor, thermal relay, residual current circuit breaker, button switch, lights, counter, when tired, switch, trip switch, electronic components, pneumatic components, voltage regulator, transformers, induction switch, instruments and meters, electrical hardware, wire and cable, building electrical appliances, smart appliances, high and low pressure Complete sets, electricity meters, explosion-proof appliances, hardware, electrical machinery and equipment, high and low voltage electrical research and development and sales; Mold design; Operating e-commerce, domestic trade, goods and technology import and export.