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Why is the metal plate under the stapler equipped with a spring?
Aug 14, 2018

The metal plate under the stapler is often equipped with a spring, and the metal on the spring piece can be rotated. After the rotation, the staple can be stapled inwardly and bound outwardly, and the outward direction is generally used when the stapled paper is relatively small. Extending outwards, so the contact area between the nail and the paper is relatively large, so the paper will not be easily damaged!

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