"Synthetic Quartz" CNS Standards List| Method Test | Presentation Title | Safety requirements | Textiles − | Geometrical product | Information Processing | Phonograph Pick | Spring Washer | |
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CNS 12255
2017 Edition Synthetic Quartz Crystal 人工石英原晶 |
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CNS 12255
1988 Edition Synthetic Quartz Crystal 人工石英原晶 |
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