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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 37063-2018 |
Freshwater cultured pearl mussels and classification of pearls 淡水育珠品种及其珍珠分类 |
China National Standards pearls |
 English PDF |
| GB/T 35940-2018 |
Seawater cultured pearl oysters and classification of pearls 海水育珠品种及其珍珠分类 |
China National Standards pearls |
English PDF |
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