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This is a life jacket designed for the mine workers. It could protect the safety of miners effectively in the mine collapse and water seepage accident. The resisting ability of outer layer of special high-strength fibers is strong; the inner layer with a high absorbent, wicking, quick-drying polyester functional fiber, wearing more comfortable. Through the expansion of life jackets to cushion heavy damage on the human body, and avoid prolonged immersion on the body injury. What’s more, by outside air filter supplying oxygen and emiting superior signal penetration, and searching with the ground work. Not only can we improve the efficiency of