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Good bottle / Articles for daily use

Good bottle

Aiming at the problem of the water bottles on the market now "good bottle" is designed. "Good bottle" solves the two problems. First, mineral water bottles were very tight, some small girl screw cap of the strength will be very arduous, "good bottle" aiming at this problem, change the structure of the bottle, two small bottles stacked together, and the second bottle is embedded in the first a bottle of bottle, according to the interaction force, twisted two bottle easily unscrewed the cap. Then put into the second bottle of bottle, the first bottle card also unscrewed easily. Second, we will encounter in life people borrow water to drink, it


Shandong university of science and technology

Shandong university of science and technology
Qingdao, China