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When we open cup when,there are always many drops of water dripping from the inside of a cup cover,cause a lot of inconvenience.
V-cover can solve this problem.
The cup cover has a prominent,can collect slip down to the water;protrusions having openings,has guide function.
YanShan university,Qin Huangdao city
Hebei Prov.China
Qin Huangdao, China
YanShan university,Qin Huangdao city
Hebei Prov.China
Qin Huangdao, China
YanShan university,Qin Huangdao city
Hebei Prov.China
Qin Huangdao, China