zhejiang botong audio and video technology co., ltd. is invested and established by zhejiang daily media group. it is headquartered in hangzhou hi-tech zone. it has business branches and customer support centers in beijing, shanghai, guangzhou, wuhan and other places. broadcom audio and video company's technical service platform is aimed at content vendors, channel vendors and advertisers in the cultural media industry chain, providing them with applications in two major directions: copyright content protection and management and commercial value-added; the company also provides three major solutions for content control, information security and transcoding to the new media field of radio and television media, the public security industry, and tv station users.illustrate: