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Oiled paper roll bottle is a convenient product that could hold water, especially in the wild. Also, it is portable because it’s only a small paper roll,which means it won’t take up too much room. And it has a shape that you could easily tie up the bag to avoid spilling the liquid.
Sichuan University
Manufacturing Science and Engineeri
Chengdu, China
Zhonghe Wen,
Sichuan University
Zhengkui Li,
Sichuan University
Xue Zhao,
Sichuan University
Chao Wang,
Sichuan University
