Shenzhen Guoneng electronic technology Co., Ltd. Is a high-tech enterprise specialized in design , manufacture and promote various special type switching power supply in the market .The company has strong ability for design and manufacture. Provide with railway communication power production have already been used in Lan Zhou – Urumchi，Gan Tang – Wu Wei, Hou Ma--Yue Shan, Shen Mu—Suo Zhou, Guang Zhou—Mei Zhou—Shan Tou Railway lines. is a member of the China Power Supply Society.