GB/T 25429-2019
石油天然气钻采设备 钻具止回阀
Petroleum drilling and production equipment—Drill string non-return valve
- 实施日期
- 2020-11-01
- ICS 分类
- 75.180.10
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
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GB/T 25429-2019
Petroleum drilling and production equipment—Drill string non-return valve
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