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Soundproofing a vehicle is used to improve the acoustic comfort of the driver and passenger. To qualitatively insulate the noise, it is necessary to eliminate the metal vibration and absorb noise inside the car. In all the metal in the car glued to the vibration-isolating material. Thin Plastic also need vibration isolation. With just a vibration isolation, you will feel a great comfort. But we can do even better. Arrange in a car noise absorbing material, such as felt, and noise is reduced more.
This video is provided by the manufacturer of the Chinese automotive sound insulation "JAWS" http://www.qichegeyin.com/
Production Music courtesy of Epidemic Sound!