Home / Standards / GB/T 39212-2020 GB/T 39212-2020 Active Drill string compensating system of floating drilling unit 浮式钻井船钻柱升沉补偿装置 Standard Type GBT ICS 47.020.20 CCS U35 Status 现行 Issue Date 2020-10-11 Implementation 2021-05-01 Responsible Dept 国家标准委 Drafting Unit N/A