Home / Standards / DZ/T 0191-1997 DZ/T 0191-1997 Active 1:250000 地质图地理底图编绘规范 Standard Type DZ ICS N/A CCS N/A Status Active Issue Date 1997-10-20 Implementation 1998-05-25 Centralized Committee 地质矿产部 Issuing Authority 地质矿产部