acoustic felt

... 浆栎果淀粉，橡子淀粉 acorn starch 吸音毡 acoustic felt 隔音 acoustic insulation ...

 baffle blanket

lt) 15),用即弃毡 16),造纸毛毡(paper manufacture felt) 17),吸音毡(baffle blanket)8, 汽车专业用无纺布 ( automotive nonwovens ) 1),吸音隔热(acoustic absorption thermal insulation) 2),车顶棚(headliner)3),...