The bore sound-absorption panel is a construction sound-absorption material which have round bore in both the front and back of the density panel.
孔型吸音板是一种在密度板的正面、背面都开圆孔的结构吸声材料。
The bore sound-absorption panel is a construction sound-absorption material which have round bore in both the front and back of the density panel.
孔型吸音板是一种在密度板的正面、背面都开圆孔的结构吸声材料。
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