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The residue in a regular trash can is hard to remove because
of the sharp corner. The arc shaped button design take great
advantage of the shape and curve. All you need to do is rinsing
and syringing. The water will bring all the dirty things away.
Guangdong University of Technology
Guangzhou, China
Liu Jingsong,
Guangdong University of Technology
Guangdong University of Technology
Guangzhou, China
Liu Jingsong,
Guangdong University of Technology