1. Light weight than other building material 2. Raw-material-Straw. Raw materials: Magnesium Oxyde, Magnesium Chloride, Mid-Alkali fiber glass, Plant fiberSpecificationLength: Raw Raw materials: fMagnesium Oxyde, Magnesium Chloride, Mid-Alkali fiber glass, Plant iberSpecificationLength: 1~4m can be customized.Width: 60cmThickness: 10cmSelf-advantage: 1. Can be sawed, nailed, shaved, drilled, ...