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Oval / Packaging


When you drink soft packaging, as most of the liquid being sucked away, reducing the gas pressure inside the bottle, the pressure of bottle inside and outside are different, resulting in reduced packaging volume.When we drink it again, it will become very difficult.And now,we change the round hole into oval hole,Internal and external pressure will be equal.And you can drink fluently.


Gengdan Institute of Beijing

Gengdan Institute of Beijing
University of technology
Beijing, China


Beijing University of Technology

Beijing University of Technology
beijing, China