Surge Protective Devices, Lightning Rod, Surge Protective Socket, Water Level Sensors, Miniature Circuit Breaker, Surge Switch, Breaker, Lightning Protector, Circuit Breaker, Steel Lightning Rod, Socket, Water SensorFounded in 1994, Zhejiang Selong Ele. Appliance is a specialized enterprise engaged in the design, development and production of surge protective device (SPD). They are mainly used in high-and-low voltage electrical ...