"Disc Recording " CNS Standards List| Hexagon Head | Radiographic Test | Open Systems | R Salt | Methods test | Boxes Rigid | Identification cards | Grommet | |
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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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