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This design is inspired by those trivial troubles in our lives. We all like to eat jams and salads but always spend a lot of time and energy on opening the cans. The reason why iron cans and glass cans are hard to open is the difference between the internal and the external pressure. On the basis of this theory, this design installs a sliding air hole. Before open the can push the ribbon so that the internal and external pressure will be the same and it will be much easier to open the can later.
Weifei Ye Qi Liu Qinxuan Zhou