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	Our principle: friendly, sincere, industrious and highly efficient Our target: first-rate service, first-rate human resources to form a standardized company Business philosophy: friendship, equality and joint development Add: 202 Kaifa west road , Hanjiang industry park, YangzhouCity Postal code:225127 Tel: 086-0514-85868966 85868967 85868968 85868969 Fax：086-0514-85868965 Contact: Tang Kewei Tang Pei E-mail：ds@golden-ds.com http：//www.golden-ds.com			KMD intelligent high frequency switch power supply system YDK intelligent communication station power supply system AC/DC distribution panel YDU series integrated UPS power source panel Intelligent high-frequency switch power supply modular Communication power source modular Intelligent high frequency switch wall style power supply Intelligent frequency conversion switch power supply in small system PX series general power line frame (cabinet) Power and postal communication system audio-frequency line distribution cabinet (frame) security unit DC/DC converter AC/DC communication intelligent high-frequency switch rectifier Communication power supply special use sine wave inversion power supply (DC/AC) YDS UPS high voltage, large capacity battery charger Relay protection test screen and DC electrical screen