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this design had improvement on the replaceable loose leaves，the front and back of the page's content is reversed.When using this design, since there is always itself is opposite to the direction of the user side of the page, the user only can write on the same side (right-handed, for example), thereby there is no possible contact of hand with the binder.This design is trying to use the simple way to solve this problem, Not only have any impact on normal writing, but also can improve the efficiency in the use of the goods.
Nanjing University of Sci. & Tech.