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Ink lable / Ink lable

Ink lable
Ink lable

The ink lable have optimized
the traditional way of illustrating the valid time of some drugs.Using the principle of invisible ink.Through controlling the balance of acid and NaOH to cater the drugs that have different valid times.Meanwhile ,it can make the colour disappear in a period of fixed time.Making the users observe the valid time of drugs more directly.


shanghai normal university

shanghai normal university
Shanghai, China