Beijing Haidian District No.6 Video Conferencing Systems No.8 Smart Engineering Land No.12 Conference Systems No.14 Jian Zhu Ke Shi Chemical No.14 Management Education No.16 Zhi Neng Lou Yu No.18 Trading Systems No.21 Zhu Zuo Quan Registration No.27 Video Conferencing No.31 IT Yun Wei No.34 IT Yun Wei Services No.42 Construction Information Models 双软认证 科技型中小企业 瞪羚企业 中关村高新技术企业 市科技型中小企业 高新技术企业 ISO9001认证