Shanghai Huakun Electrical Co.,Ltd. located in the largest manufacturing base of low-voltage electric equipment of China, "LIUSHI OF CHINA", is a special electrial company united with trade and maunfacture, well-known for business on complete sets of power transmission & distribution equipment and components, such as HV. And LV. Switchgears, power transforms(Oil and dry) and components including Vacuum circuit breaker for 12KV, LV. Air circuit breakers (ACB), Plastic cased circuit breakers (MCCB), Contactors…