"Drills，Straight " CNS Standards List| Standard specification | Pedometer | Metric Trapezoidal | Performance Test | Method Eddy | Royal jelly | Method Test | Method Testing | |
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CNS 228
2017 Edition 60° Center Drills，Straight Form with Conical Protective Chamfer 中心鑽（60°，去角直線錐形） |
Translated |
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CNS 227
2017 Edition 60° Center Drills，Straight Form 中心鑽（60°，直線錐形） |
Translated |
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CNS 228
1979 Edition 60° Center Drills，Straight Form with Conical Protective Chamfer 中心鑽（60°，去角直線錐形） |
Translated |
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CNS 227
1979 Edition 60° Center Drills，Straight Form 中心鑽（60°，直線錐形） |
Translated |
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