Shenzhen Guoneng Electronics Co., Ltd. (China Mainland), a high-tech enterprise specialized in designing, manufacturing and selling various Power Supply, Printed Circuit Board Assembly (PCBA), control /MCU board, inverters, transformers, etc. in China domestic and international market. we also design to meet your individual specifications and needs. We have been in this field for many years and had much experience. We are member of China Power Supply Association. For the fine quality, our products have already been used in China National Railway Lines such as Lanzhou to Urumchi, Gantang to Wuwei, etc. We can offer our customers top-ranking products with competitive price. We wish to carry on trade with importers and merchants of all countries on the basis of equality and mutual benefit for the development. Welcome for cooperation.