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There is a large part of people who fall into the water, because of lack of water and food, reducing rescue time and rescuing lost opportunities. this life buoy increases a hollow part for the storage of water and food, in order to increase survival time of victims and the rescued chance.
Gui LIN Wang Lei Yang Xiao Fu Yueming Rao Yu Li Yan Fang Yao Chen Si Zhan Yangyang Chen Chen