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Have you ever had an experience when you go to the hospital, you want to drink water. The paper cup they supplied are pieces of paper. When you want to take one piece of the paper cup, you just screw up all of the cups because they are pieces.
To overcome this problem, we just change the other usage of the cups. We design the cups to be a roll. The cut lines to be a strim line, it could provide you an more approviate angle to drink water. An d you can take the water cup more tightly.
Chiao Tung University
Ni Feng Liu
New Taipei city, Taiwan
Ni Feng Liu Che Jung Chang