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变色牛奶盒 / The discoloring milkbox


Wasteful when it is overdued. People can be relieved to drink the milk which has a scientific decoration towards its quality guarantee period.
The milk in refrigerator is easily forget to drink and thus it's
Over time of the quality guarantee period, the milk box will change its color,which is a hint for people( to choose right milk.)


Chengdu University Of Technology

Chengdu University Of Technology
Chengdu, China