一种可隔声、吸声的多层复合结构材料,适用于制作隔声罩或隔声板,尤其适于制作泵、风扇、风机、电机等的机械降噪、消声装置,以控制工业噪声,可得到理想的效果。经环保部门用NO2精密声级计在现场测试,噪声级从120分贝降至80分贝,震耳欲聋的机房,经治理后,谈话声清晰可闻,完全达 A soundproof, sound absorbing multilayer composite structure material suitable for making noise enclosures or sound insulation panels, especially suitable for mechanical noise reduction and muffler devices for pumps, fans, fans, motors and the like to control industrial Noise, can get the desired effect. The environmental department with the NO2 precision sound level meter in the field test, the noise level from 120 dB to 80 dB, deafening room, after treatment, the voice can be heard clearly, completely up to