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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 19831.3-2023 |
Oil and gas industry Casing centralizers Part 3: Rigid and semi-rigid centralizers {译} 石油天然气工业 套管扶正器 第3部分：刚性和半刚性扶正器 |
China National Standards centralizers |
 English PDF |
| GB/T 19831.1-2005 |
Petroleum and natural gas industries-Casing centralizers-Part 1:Bow-spring casing centralizers 石油天然气工业 套管扶正器 第1部分 弓形弹簧套管扶正器 |
China National Standards centralizers |
English PDF |
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