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This is the design of a disposable paper cup with ends connected around a cylinder. Before using it, just tear it off the cylinder, prop it up and then use it as an ordinary cup. With different color bars on them, cups can be easily distinguished by their different users.
huazhong university
wuhan, China
huazhong university
wuhan, China
He Huang
SiSi Guo
Yao Tong
Linfeng Su