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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 39141.3-2022 |
Inorganic and sapphire watch glasses - Part 3: Qualitative standards and test methods {译} 无机和蓝宝石手表玻璃 第3部分：定性标准和试验方法 |
China National Standards Inorganic sapphire watch |
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