"Disc Recording" CNS Standards List| Control charts | Lead Standard | Copper copper | Iron ores—Methods | Zinc Powder | Graphical Symbols | Measuring Projectors | Cylinder Liners | |
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CNS 6138
2017 Edition Disc Recording Characteristic 唱片錄音特性 |
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CNS 6138
1989 Edition Disc Recording Characteristic 唱片錄音特性 |
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