Hangzhou Youwang Electronics Co., LTD. locates in Hangzhou Hi-Tech Industry Development Zone, known as ??ilicon Valley in Paradise?? Youwang was invested by Unisonic Technologies Co., LTD.??ocates in Taiwan??and Hangzhou Silan Microelectronics Co., LTD. We are specialized in designing, manufacturing and selling semiconductor ICs, discrete devices and LEDs. We were honored with ??i-Tech Enterprise??