Home / Standards / GB/T 22342-2008 GB/T 22342-2008 Abolished Petroleum and natural gas industries - Subsurface safety valve systems - Design, installation, operation and redress 石油天然气工业 井下安全阀系统 设计、安装、操作和维护 Standard Type GBT ICS 75.180.10 CCS E92 Status 废止 Issue Date 2008-08-28 Implementation 2009-03-01 Responsible Dept 国家标准委 Drafting Unit N/A