GB/T 21267-2017石油天然气工业套管及油管螺纹连接试验程序国家标准
英文:Petroleum and natural gas industries—Procedures for testing casing and tubing connections GB/T 21267-2017介绍: 国家标准《石油天...
英文:Petroleum and natural gas industries—Procedures for testing casing and tubing connections GB/T 21267-2017介绍: 国家标准《石油天...