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聚酯纤维吸音板墙面KTV影院琴房隔音板消音装修材料 硬度与密度
聚酯纤维吸音板吸音降噪隔音专用，吸音板与隔音材料专用，硬度与密度倒角测试，幼儿园琴房鼓房乐器室直播间隔音吸音降噪测试
装饰降噪聚酯纤维吸音板163/220
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