"Chordal" CNS Standards List| Methods Test | Symbols Sequential | Method Test | Method Test | Hard drawn | Basic Environmental | Methods Determination | Method chemical | |
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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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