... 3G/4G antennas, 2.4GHz (wi-fi, wlan), 3.5GHz (wimax), 5.8GHz wireless spread spectrum communication antennas series (including: ... power splitter / surge arresters, signal booster devices and communication equipments; Yin Chi-commerce has formed up to hundreds ... positioning, radio broadcast radio and television, and other civilian communication system applications. Yin Chi-commerce is committed to its ...