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Beijing constant day age electrical technology co., LTD. Was founded in 2004, is located in the haidian district of Beijing zhongguancun hi-tech park, at first is a monopolize all the praises engaged in UPS power supply, precision air conditioning agent, promotion and sales business, on this basis, the company and to carry out the product research and development, international trade, uninterrupted maintenance service and so on various business. Constant day age to UPS power supply products and precision air-conditioning sales and maintenance services. The main agent of brands are: the United States EMERSON (EMERSON), mountain's (SANTAK), schneider (SHNEIDER) (tianjin merlin gerin and APC), all kinds of stabilized voltage power supply, and supporting equipment, specifically for finance, oil, fire control, electric power system users provide UPS products and 7 * 24 hour professional services; At the same time the company also engaged in all kinds of precision air conditioning, fire..