Beijing Haidian District No.15 Ying Yu Yue Du No.16 Digital Culture No.22 Video Production No.24 Internet Education No.26 Education Products No.30 Digital Content No.56 Content Production No.70 Jiao Yu Xin Informatization Nei Rong Chuang Zuo Digital Technology Trading Education Technology 高新技术企业 科技型中小企业 市科技型中小企业 省级高新技术企业 发明专利 软件著作权 ISO9001认证