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The life-saving circle is the main common type in the life-saving equipment, the scope of application is wide, involving ship shipping, water operation, anti-flood relief, and water tourismLeisureActivity, etc. Once a person accidentally falls water, a life-saving circle may save a life of one or more people, the life-saving circle as a safety protection product, play ambulance, and protect the important role of life. The life-sauce product is different from the special attributes of other general products, and should be a reliable and effective trust and quality assurance. The polyethylene compound lifeline is a high-density polyethylene material for housings, intrinsic polyurethane foam materials, and a new life buoy in China. The current annual output has reached more than 100,000. The compound lifebuoy solves the non-oil resistance of polystyrene to the lifetime, in the high temperature environment and is easy to aging, paint layer peeling and complex manufacturing process in high temperature environments, and is complex, and is a polystyrene life-saving ring upgrade. The life-saving circle has the advantages of strong color, smooth surface, anti-aging, mechanical strength, corrosion resistance, etc., but the production cost is higher than the polyethylene. Therefore, in order to reduce costs, most small companies will only purchase polyethylene housings, filling the polyurethane foam materials or purchasing semi-finished products directly, and possesses the reflective materials and nameplates, and install the handles.
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