GB/T 9253.2-2017石油天然气工业套管、油管和管线管螺纹的加工、测量和检验国家标准
英文:Petroleum and natural gas industries—Threading,gauging and thread inspection of casing,tubing,and line pipe threads G...
英文:Petroleum and natural gas industries—Threading,gauging and thread inspection of casing,tubing,and line pipe threads G...