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The dustpan’s shape just like a funnel.
Use of principle of fold and the Theory of Gravity , the design can be completed .
It makes the process of dumping garbage become interesting and convenient.
Ningbo Institute of Technology,
Ningbo ，Zhe Jiang, China
Ningbo Institute of Technology, Zhejiang University
Weizheng Zhan Yuxiang Gao Jianhua Chen