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Vacuum cup / product design

Vacuum cup
Vacuum cup

BeforeIf more people, you can't directly on thecup of water.
At the bottom of the open can put a few cups.There is a groove at the bottom of the can put a cup. Now You can take out more than one cup to share your wate.

University

GUANGDONG VOCATIONAL COLLEGE OF SCIENCE AND TRADE

GUANGDONG VOCATIONAL COLLEGE OF SCIENCE AND TRADE
Guangzhou, China

ruike chen,
GUANGDONG VOCATIONAL COLLEGE OF SCIENCE AND TRADE