Founded in October 1992, Beijing Huahuan Electronics Co., Ltd., is a hi-tech company with majority holdings by Tsinghua University, one of China's most prestigious universities.Backed by rese...

#200,qiutao road Hangzhou, Zhejiang

Hangzhou TAK communication co.,ltd is a Chinese leading supplier of optical transmission products such as SDH fiber optical multiplexer ,PDH/MSTP transmission equipment, E1/v.35/serial RS232,422,485 d...