Home / Standards / GB/T 41969-2022 GB/T 41969-2022 Active Building construction machinery and equipment—Advanced geological drilling rig 建筑施工机械与设备 超前地质钻机 Standard Type GBT ICS 91.220 CCS P97 Status 现行 Issue Date 2022-12-30 Implementation 2023-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A