Home / Standards / GB 14912-1994 GB 14912-1994 Abolished Specifications for computer-aided mapping of large-scale topographic maps 大比例尺地形图机助制图规范 Standard Type GB ICS 07.040 CCS A79 Status 废止 Issue Date 1994-01-14 Implementation 1994-10-01 Responsible Dept N/A Drafting Unit N/A