"Normal Chordal " CNS Standards List| Footwear − | Essential oils | General rules | High Purity | Base paper | Flat Fitted | Optical fiber | Heat Formable | |
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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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