Guangxi Yinhe Decom Electric Co., Ltd. (GYDEC), which used to be a Sino-German joint venture and a subsidiary of Beihai Galaxy Switch Devices Co., Ltd., is the biggest manufacturer of MV and HV electrical equipment in Mid-South China, specialized in research and development, production, sales and after-sales of vacuum circuit breaker, ring main unit, gas insulated switchgear, metal-clad switchgear, transformers, outdoor pole-mounted switch and substation. Adhering to global cooperation and self-independent innovation, GYDEC has developed a series of high-end products with "German Quality, Made in China" by cooperation with German companies and hiring top experts in switchgear industry from Germany and Japan: VYG series embedded pole vacuum circuit breaker, GLX24 series SF6 insulated ring main unit, OSIS24 series solid insulated switchgear and SLX24 series solid insulated ring main unit. With strong research and development ability, advanced production and test facilities, rational management idea and perfect quality assurance system, products are always in a leading position in both domestic and international markets. GYDEC has got the certificates of CESI, KEMA, XIHARI, TUV and GOST for its products. The products are widely used in power plants, substations, metros, and urban power transmission and distribution systems. Its business covers areas all over the world, including Europe, Oceania, Africa, South America, Middle East, Middle Asia, Southeast Asia and so on, enjoying a good reputation.