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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| YB/T 4054-2021 |
Commonly used perforated plug technical conditions for seamless steel pipes {译} 无缝钢管常用穿孔顶头技术条件 |
China Metallurgy Industry
Standards Pipes commonly |
 English PDF |
| HG 20519.27-1992 |
(Pipes commonly used abbreviations) |
China Chemical Industry
Standards Pipes commonly |
English PDF |
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