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This will not only improve the security of the drowning and lifeguards, but also improve the efficiency of the rescue.
The overall shape of a life jacket fits the body curve and is in line with the principle of ergonomics, makes users more comfortable, not easy to fall off.The collar of life jacket is designed for two ring easily-fetched handles, so lifeguards will be able to seize the drowning man, and let the drowning person's head being out of water until he's transferred to safety zone.
San ming university
Lin xingmin Xia luting Zhang bin Jiang ying