The down proof cotton fabric was obtained through the resin finishing.
运用树脂整理的方法，使棉织物具有防钻绒效果。
With the acoustic paper or sound proof cotton , the punch ceiling increase absorption capacity of whole closed space and the noise reduction can alter the impact .
冲孔天花板背面加入隔音纸或者隔音棉，有助于增加整个密闭空间的总吸收量，降低噪音给我们带来的影响。
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