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Everyday,we use so many A4 papers.and then we throw it to dustbin. On the other hand ,we often make our table so dirty because of there is no dustbin nearby.this design can turn a used A4 paper to a small and temporary dustbin. Put it on your
table,and to be a environmentalist.
NanChang University
NanChang China, China
NanChang University
NanChang China, China
Chen Li,
Junrui Li,
Xiangyan Tang,
Wenfeng Luo