"Normal Chordal " CNS Standards List| Dental Silver | Method test | Audio, video | Hydrochloric acid | 75 ohm | Office document | Quartz Crystal | Method Test | |
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CNS 7578
2022 Edition Normal Chordal Tooth Thickness and Chordal Height of Spur Gears in the 0.5 System ０．５齒制正齒輪之弦齒厚及弦齒冠 |
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CNS 7578
2020 Edition Normal Chordal Tooth Thickness and Chordal Height of Spur Gears in the 0.5 System ０．５齒制正齒輪之弦齒厚及弦齒冠 |
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