Space for materials absorption body are on both sides of a piece of sound field, material can play double absorption effect, which greatly improve the sound absorption performance of the material. Level of suspension absorption than on the vertical space is good, sound absorption body absorption are obviously improved, especially in more than 500 HZ ac of high frequency sound absorption coefficient of the ground tile, than by about 50% above.

Specification: size can be customized.

Shape: can make to order.