яичная скорлупа пена, eggcrate пена, пена пирамида, акустическая

Sound-absorbing foam has the special concave-convex body and honeycomb curved surface structure.The honeycomb shape and hole opened curved surface of the materialcan cause the sound wave repeated feflection weaken and reduce the noise.Surface of the material,can cause the sound wave repeated reflection weaken and reduce the noise transmission.Many kinds of functions,such as heat prevented,nose reduction and sound-absorpiton. These PU foam products are widely used in air,aquarium fields.