Home / Standards / GB/T 41455-2022 GB/T 41455-2022 Active Data dictionary for underground pipeline features 地下管线要素数据字典 Standard Type GBT ICS 07.040 CCS A75 Status 现行 Issue Date 2022-04-15 Implementation 2022-04-15 Responsible Dept 自然资源部(测绘地理) Drafting Unit N/A