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Eatable Life Ring is to enlarge every possibility to help the survivors to live longer. The outer surface of the life ring is eatable, which is be made up of water-fast protein pellicle whose main ingredient is corn.thus would give the people more energy to live longer enough to be saved.And the material of outer is decompose and environmentally friendly .
Wang Jiaxi ;Peng Junjie ;Shen Meiying