Shanghai Changcheng Electric Complete Equipment Co., Ltd. is jointly established by a group of electrical professionals who have been engaged in technical development and technical management for many years. It has modern industrial plants and office space. Specializing in the production and operation of high and low voltage intelligent universal circuit breakers, molded case circuit breakers, leakage circuit breakers, molded case electronic circuit breakers, miniature circuit breakers, dual power supplies, knife switches, isolating switches, AC contacto...