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 plugging |
English PDF |
GB/T 32475-2016 |
Rubber hose and hose assemblies for coal seam water injection,gas drainage and drilling plugging 煤层注水、钻孔封堵及瓦斯排放橡胶软管和软管组合件 |
China National Standards plugging |
English PDF |
GB/T 28055-2011 |
Technical standard for hot tapping and plugging on steel pipeline 钢制管道带压封堵技术规范 |
China National Standards plugging |
English PDF |
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