Home / Standards / GB/T 17744-2020 GB/T 17744-2020 Active Petroleum and natural gas industries—Drilling and well servicing equipment 石油天然气工业 钻井和修井设备 Standard Type GBT ICS 75.180.10 CCS E92 Status 现行 Issue Date 2020-12-14 Implementation 2021-11-01 Responsible Dept 国家标准委 Drafting Unit N/A