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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 13403-2023 |
Gaskets for large diameter steel pipe flanges {译} 大直径钢制管法兰用垫片 |
China National Standards Gaskets large diameter |
 English PDF |
| GB/T 13403-2008 |
Gaskets for large-diameter steel pipe flanges 大直径钢制管法兰用垫片 |
China National Standards Gaskets large diameter |
English PDF |
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