Cement boards are widely used in interiors design, ceiling, outside of building and for different purposes. they are produced in 2,440mm*1,220mm width and lenght with density of 1,400kg/cubic meter. the thickness can varry from 8-20mm. mainly they are not painted. the production method is by roll drum and in some different production they produce by autoclave. some technical details: water absorbtion: 18% strength in bending when dry: 16 MPa strength in bending when wet: 9.5 MPa shrinkage after 24 hours in water: less than 0.1% the photos of cement boards, their packing can be seen in the photos below.