框料厚度 表面材質(雙層) 隔音係數 83mm a. 12mm石膏板+60K隔音棉 STC 47dB b. 5mm強化玻璃/8mm強化玻璃 Rw 43dB c. 5mm強化玻璃/5mm強化玻璃 STC 37dB Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window
