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There are mainly two types of staples at present, one is being used domestically or in the office, the other is being used for binding books technically. The main difference between then is the length of their bodies. The staplers used at home can only bind several pieces of paper at a time due to the limitation on the length of the body. The innovation concept is that we can provide a new function of stretching to a regular stapler in order that books can be bind in a lighter way.
Jintong Zhu, Zan Xu