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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 34304-2017 |
Warning grade of hail suppression operation 人工防雹作业预警等级 |
China National Standards Grade hail |
 English PDF |
| GB/T 27957-2011 |
Grade of hail 冰雹等级 |
China National Standards Grade hail |
English PDF |
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