Construction material, namely, nonmetal interior wall component in the nature of sound absorbing interior wall; construction material, namely, nonmetal exterior wall component in the nature of sound absorbing exterior wall; Nonmetal construction material, namely, sound absorption board for insulation; Nonmetal construction material, namely, acoustic board for insulation; Nonmetal construction material, namely, acoustic panels for insulation; construction material, namely, wooden suction board...

Construction material, namely, nonmetal interior wall component; construction material, namely, nonmetal exterior wall component; construction material, namely, sound absorption board; construction material, namely, acoustic board; construction material, namely, acoustic panels; construction material, namely, wooden suction board; nonmetal building materials; nonmetal sound absorbing panel; sound absorption panel for building interior