... .5--13mm OEM Building Materials : light weight, fire resistant, sound isolation, heat isolation, energy consumption reduction ... core. The material has advantages of light weight, fire resistant, sound isolation, heat isolation, energy consumption ... ( regular gypsum board, water -proof gypsum board , fire -proof gypsum board ) (1220*2440/ 1200*2400/1200 ... term : t/t . gypsum board for partition system