Home / Standards / GB/T 33183-2016 GB/T 33183-2016 Active Fundamental geographic information—Specifications for 1:50 000 topographic data 基础地理信息 1:50 000地形要素数据规范 Standard Type GBT ICS 07.040 CCS A75 Status 现行 Issue Date 2016-10-13 Implementation 2017-02-01 Responsible Dept 自然资源部(测绘地理) Drafting Unit N/A