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Which one is your bottle? It is often happened in daily life. A person while drinking water is not found this problem, But when a few people bought a product water, can appear awkward question- can't tell which one is your own bottle,very headache. This kind of packing way cleverly solved the problem, Even the same product can distinguish. Trademark of hollow out processing, Make the brand more outstanding, Increased its business value. Rotation operation, simple easy to operate.
Chengdu University of Technology