In the modern power system, GGD complete sets of switchgear with its excellent performance, high reliability and flexible configuration, has become an indispensable power distribution and control equipment for power users such as power plants, substations, factories and mining. In the modern power system, GGD complete sets of switchgear with its excellent performance, high reliability and flexible configuration, has become an indispensable power distribution and control equipment for power users such as power plants, substations, factories and mining. SEFON is an integrated and comprehensive power engineerng service enterprise which combining the production and sales of complete sets of electric power equipment, EPC of electric power project, installation and construction of electric power engineering, after-sale operation management and. The low-voltage distribution cabinet is connected to each power distribution panel, control box and switch box, It is the equipment of power distribution device that meets the design functional requirements by assembling some protective devices such as switches, circuit breakers, fuses, buttons. GGD is a Fixed Complete-set Switchgear Equipment with simply and flexibly. GCK is a Withdrawable Low Voltage Complete-set Switchgear Equipment with high-reliability, cheaply. Chengyuan has approximately 180 employees and we have. Focus on high and low voltage transmission and distribution and related complete sets of products. GGD distribution cabinet is used for power plants, substations, factories, mines and other power users with AC 50Hz, rated working voltage 380V and rated working current up to 3150A distribution.