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The car suddenly faults in the process of high-speed road.In order to avoid secondary accident. At this moment need to be alert at the back of the vehicle to slow down. This is a hanging in the rear of the fault warning belt. For warning belt charging by kinetic energy into electrical energy. When failure or accident occurs, the owner just open the trunk and hang warning belt stretching on the rear door hook. At ordinary times you will not put in the trunk, it occupies a space small and convenient.
Guangdong Industry Technical College