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Keyword:
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| HG/T 20538-2016 |
(Lined steel pipes and fittings selection series) 衬塑钢管和管件选用系列 |
China Chemical Industry
Standards Selection series steel |
 English PDF |
| HG/T 20553-2011 |
Selection series of steel pipe size for chemical piping 化工配管用无缝及焊接钢管尺寸选用系列 |
China Chemical Industry
Standards Selection series steel |
English PDF |
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