Home / Standards / GB 22021-2008 GB 22021-2008 Active Basic specifications for national geodesy 国家大地测量基本技术规定 Standard Type GB ICS 07.040 CCS A76 Status 现行 Issue Date 2008-06-20 Implementation 2008-12-01 Responsible Dept 自然资源部(测绘地理) Drafting Unit N/A