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R-stapler is a kind of stapler improved design combined scale with stapler. It solved the problem that the unequal distance between several staples and the edge of paper when stapling documents. Meanwhile, users can choose the scale by the stapler on their own. By using R-stapler, your rigorous character can be shown in details.
SHAN Ying, SUN Zilin, LI Qiang, CUI Yanbin