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| International Standard Category: Oxides |
YB 4040-1991 Dysprosium oxide
氧化镝 ;
| Category No.: | 71.060.20 | Valid Status: | valid |
| Issued Organization: | Ministry of Metallurgical Industry | Issued Date: | 1991-05-04 |
| Implemented Date: | 1992-1-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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