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During the outbreak of COVID-19, it is found many cases that the mask isn’t fit for someone in our daily usage. This new product, which is designed to be able to adjust strap of the mask is intended to solve the problem of size mismatch, that would make it easier for the usage of the mask for us.
Zhejiang university of finance
& economics dongfang college
Zhejiang , China
Zhejiang University of Finance & Economics Dongfang College