We, SHSNGHAI HUAKUN ELECTRIC CO.,LTD. is specialized electrical company united with trade and manufacture, engaging with intelligent H. & L. voltage switchboards, H. Voltage vacuum circuit breaker (12KV) , Elec. power transformers (Oil & Dry) which have had UL certificate and passed Kema Test. We are not only leader of the production of high-grade intelligent H. & L. voltage control equipments (switchboards) and but also leader of the production of Circuit Breaker Actually in China.