Shanghai yuance Electronic Technology Co., Ltd. (hereinafter referred to as YDS yuance Technology) as a superior network transformers, RJ45 network port integrated filter, DC / DC power module, AC / DC switching power supply, POE power transformer manufacturing plant and to undertake customers Custom non-standard products. Since its founding in 1990, Taiwan has been committed to providing outstanding service to its global customers and has gradually formed its manufacturing center in Asia in Taiwan, mainland China and other places. Yuan book technology in China to the Shanghai business department as the center, has been in the domestic Beijing, Shenzhen, Xi'an, Chengdu, Zhejiang and other places set up a distribution agency for local customers to provide faster sales service. Effectively enhance the technical depth of the product and the use of areas, continue to forge ahead to meet customer needs, strive for high efficiency and low cost goals. Gradually rapidly in the Chinese market by middle and high-end customers recognized. Most products are CE, UL quality certification, all products have passed SGS, ROHS and other environmental labels, enterprises passed QC080000, ISO9001, ISO14000 and other quality certification.