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Keyword:
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| HG/T 2252-1991 |
(Adopt and Celestine ore sample preparation methods) 天青石矿样品的采取和制备方法 |
China Chemical Industry
Standards Celestine |
 English PDF |
| HG/T 2251-1991 |
(Celestine ore) 天青石矿 |
China Chemical Industry
Standards Celestine |
English PDF |
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