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the product by using the principle of the revolver loaded for the bullet, injecting insulin needles placed inside the product, you need to use when unscrewed the device and remove the needle implementation with injection, easier for people to carry out. Also convenience for the old man. We change the traditional modelling of it products, designed a more product appearance of keeping pace with The Times, its looks specially
Huashang College Guangdong University of Finance and Economics
Zeng Cheng, China