Abstract
PreviewThis document specifies classification, dimensions, quality and test methods for hand-held mechanical pencilss which hold and feed out a lead, and are used for general writing. It is also applicable to multi-function pens equipped with a mechanical pencil unit. However, those pencils attached to machinery instruments such as a plotter are excluded.
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| Format | Language | |
|---|---|---|
| std 1 61 | PDF + ePub | |
| std 2 61 | Paper |
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