... 3.Earthquake,cyclone proof 4.ISO9001:2008 Detailed Product Description3d design villa 1.Galvanized steel or powder coated steel as the ... , sand and floor. 3.floor: The mainly material are: shape beam, roof purlin, floor board, concrete, wood floor; the main second ... can quakeproof well. 4.Roof:The main structure are : shape beam, ceiling, roof purlin, sandwich roof panel, glass wool, colour steel ...