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The design of washbasin is focused on full using of water and saving resources.The same water have fuller use in sloped washbasin when people wash something. It benefits to save water. In daily life,people tend to need several washbasins to wash dishes, clothes and other things.You just need to turn around the bottom and then get a washbasin with the same capacity. The functions of large and small opening can be distinguished effectively. Using one washbasin to complete the works of two washbasins is not only convenient for people but also saving recourse greatly
East China Jiaotong University