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According to statistics, an unclosed tap will cause about 7 liters water waste per minute and the number will reach up to 700 millions for a small city. Traditional sink equip with freeing port and that will cause water waste. Water-saving sink take advantage of induction principle and tap will close automatically when water level beyond induction line, that will avoid water overflow from sink. This conception will make people’s lives more convenient and reduce water waste
Xiafei Ding Lin Fu Chenming Liu Xiaopu Jiang