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Professional Standard Category: Professional Standard - Rare Earth |
Category No.: | XB | Valid Status: | superseded |
Issued Organization: | NDRC | Issued Date: | 2013-4-25 |
Implemented Date: | 2013-9-1 | Abolished Date: | |
Superseded Standard.: | XB/T 302-2019 High-purity terbium |
Superseded Date: | 2020-1-1 |
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