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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 28055-2023 |
Technical specifications for hot-pressurized plugging of steel pipelines {译} 钢质管道带压封堵技术规范 |
China National Standards Specifications steel pipeline |
 English PDF |
| GB/T 27699-2023 |
Technical specifications for internal inspection of steel pipelines {译} 钢质管道内检测技术规范 |
China National Standards Specifications steel pipeline |
English PDF |
| GB/T 21447-2018 |
Specifications for steel pipeline external corrosion control 钢质管道外腐蚀控制规范 |
China National Standards Specifications steel pipeline |
English PDF |
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