GB/T 25429-2019

Active

Petroleum drilling and production equipment—Drill string non-return valve

石油天然气钻采设备 钻具止回阀

Standard Type
GBT
ICS
75.180.10
CCS
E92
Status
现行
Issue Date
2019-12-31
Implementation
2020-11-01
Responsible Dept
国家标准委
Drafting Unit
N/A