"Tolerance Key " CNS Standards List| Indoor air | Method test | Method Test | Steel drums | Refined waterfowl | Clip Wire | Air Dry | General Rules | |
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CNS 175
2018 Edition Tolerance of Key Slot for Taper and Flat Key 鍵槽公差（用於斜面鍵及平鍵） |
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CNS 174
2018 Edition Saddle Key and Tolerance (Cold Drawing) 鍵鋼剖面及偏差（冷拉，用於鞍形鍵） |
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CNS 173
2017 Edition Key Section and Tolerance (Cold Drawing) 鍵鋼剖面及偏差（冷拉） |
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CNS 173
1983 Edition Key Section and Tolerance (Cold Drawing) 鍵鋼剖面及偏差（冷拉） |
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