The grooved wood sound-absorbing board is a slit resonance sound-absorbing material with grooves on the front and perforations on the back of the density board.
Groove wood sound-absorbing panels are generally divided into the following three levels: fire protection level B2, fire protection level B1, and fire resistance level A2 and are flame retardant. Three types of sound-absorbing materials with different fire protection levels have different core finishes.