Home / Standards / GB/T 9253-2022 GB/T 9253-2022 Active Petroleum and natural gas industries—Threading, gauging and thread inspection of casing, tubing, and line pipe threads 石油天然气工业 套管、油管和管线管螺纹的加工、测量和检验 Standard Type GBT ICS 75.180.10 CCS E 92 Status 现行 Issue Date 2022-12-30 Implementation 2023-04-01 Responsible Dept 国家标准委 Drafting Unit N/A