"leads " CNS Standards List| Fluorescent Berth | Taps Whitworth | Dimensions Cylindrical | Definitions Terms | Permissbile Deviations | Screw Thread | Test Code | Standard practice | |
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CNS 7081
2018 Edition leads for mechanical pencils 自動鉛筆用筆芯 |
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CNS 552
2017 Edition Pencil, coloured pencils and leads for them 鉛筆、顏色鉛筆及其筆芯 |
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CNS 552
2012 Edition Pencil, coloured pencils and leads for them 鉛筆、顏色鉛筆及其筆芯 |
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