Home / Standards / GB/T 21267-2017 GB/T 21267-2017 Abolished Petroleum and natural gas industries—Procedures for testing casing and tubing connections 石油天然气工业 套管及油管螺纹连接试验程序 Standard Type GBT ICS 75.180.10 CCS E92 Status 废止 Issue Date 2017-05-12 Implementation 2017-12-01 Responsible Dept 国家标准委 Drafting Unit N/A