Beijing Chaoyang DistrictNo.20 Measuring TechnologyNo.40 Gong Cheng Ce LiangNo.50 Surveying and Mapping Measuring Software Surveying and Mapping Engineering中关村高新技术企业高新技术企业省级专精特新中小企业市级专精特新中小企业省级高新技术企业市级创新型中小企业市级高新技术企业专精特新小巨人企业ISO9001认证GB/T19001认证