... impact resistance decorative wall board, partition board, cement board is a composite material made of sand, cement and cellulose fibers. decorative wall board, partition board, cement board is manufactured ... Size:1220mmx2440mm,1200mmx2400mm,915mmx1830mm,1220mmx3660mm Thickness:3mm---24mm decorative wall board, partition board, cement board main Characteristics: 1)Fire resistant 2)Weather resistant ...