Home / Standards / GB/T 17745-2011 GB/T 17745-2011 Active Petroleum and natural gas industries - Care and use of casing and tubing 石油天然气工业 套管和油管的维护与使用 Standard Type GBT ICS 75.180.10 CCS E92 Status 现行 Issue Date 2011-07-20 Implementation 2011-10-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委