... 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 ...