US expands bans of surveillance equipment made by Chinese companies including Huawei, ZTE Hikvision, Dahua and Hytera US Federal Communications Commission (FCC) banned sales of new telecom and surveillance equipment made by several Chinese companies including Huawei, ZTE, Hikvision (海康威视), Dahua (大华) and Hytera(海能达) 2.4w 11-29 21:01 READ MOST 我国授权纳米专利总数达46.4万件 居世界第一 8177 08-30 21:46 POPULAR TAGS 纳米 中科院 专利
