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'STEP4' is Drinking fountain for save water and give to good usability.
'STEP4' consists of four steps. The first step is a step by adults to drink water. And second step is the kids are drinking water. And Then the water is reused in pets and plants.
Seoul Tech University
Seoul-si, South Korea
Seoul National University of Science & Technology
Bucheon-si, South Korea
Du-ri Lee
