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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| YB/T 4330-2023 |
Large diameter austenitic stainless steel seamless steel pipe {译} 大直径奥氏体不锈钢无缝钢管 |
China Metallurgy Industry
Standards Large diameter steel |
 English PDF |
| SY/T 7044-2016 |
Large diameter seamless steel pipe used for submarine pipeline 海底管道用大口径无缝钢管 |
China Oil & Gas Industry
Standards Large diameter steel |
English PDF |
| HG/T 20623-2009 |
Large diameter steel pipe flanges (PN designated) 大直径钢制管法兰（Class系列） |
China Chemical Industry
Standards Large diameter steel |
English PDF |
| HG/T 20537.4-1992 |
(Chemical plant large-diameter welded austenitic stainless steel technical requirements) 化工装置用奥氏体不锈钢大口径焊接钢管技术要求 |
China Chemical Industry
Standards Large diameter steel |
English PDF |
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