... in bathrooms. Also the most use is wall partition partition calcium silicate board , inner wall board product description Raw Materials: Cement, Quartz Sand, Fiber ... Size:1220mmx2440mm,1200mmx2400mm,915mmx1830mm,1220mmx3660mm Thickness:3mm---24mm partition calcium silicate board , inner wall board main Characteristics: 1)Fire resistant 2)Weather resistant ...