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  • Sound insulation cover
    Sound insulation cover
    2018-06-25
    The enclosure is made of metal material with a certain weight and rigidity. It is usually made of 2~3 millimeter thick steel plate with a damping layer. The damping layer is often used as the fiber fabric or fiber material soaked by the asphalt damped glue (using the bitumen dipped linen cloth, glass cloth, felt or stone cotton wool, etc.), and some specially made damped pulp. The outer damping layer is used to avoid the effect of the plate and the low-frequency resonan
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