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A syringe which is more sanitary , more convenient and easier to recycle.
This syringe is a whole formation with simple manufacturing process;
The bottom is airtight which can weaken the spread of virus and germs;
It is used more conveniently;
The body is compressible and occupies less space when transported.
The previous syringe has complicated production process, and consume more resources , whats more, it is not convenient for transporting. So we create this new syringe.
Li Bei,Yu Junnan,Cai Fengjiao,Chen Tong