Beijing Chaoyang District No.7 Aerial Photography No.13 She Ying Ce Liang No.13 Hang Kong She Ying Ce Liang No.15 Yan Tu Engineering Survey No.16 Cheng Shi Zong He Guan Lang No.17 Surveying and Mapping Land Management Information No.18 Zhi Ye Jian Kang An Quan Guan Li Ti Xi Certification No.24 Engineering Surveying and Mapping No.26 Gong Cheng Ce Liang No.28 Survey Surveying and Mapping No.33 Surveying and Mapping No.33 Engineering Survey Design 理事单位 高新技术企业 实用新型专利 软件著作权 科技型中小企业 省级专精特新中小企业 ISO14001认证 ISO27001认证 CMA认证