Home / Standards / GB/T 37747-2019 GB/T 37747-2019 Active Requirements of construction for self-elevating drilling units 自升式钻井平台建造质量要求 Standard Type GBT ICS 47.020.99 CCS U17 Status 现行 Issue Date 2019-06-04 Implementation 2020-01-01 Responsible Dept 国家标准委 Drafting Unit N/A