... fiberglass cement panel as shell,is filled with ceramsite concrete as core materials. It is a new wall with ... installation, smooth clean surface, reduce transportation costs, can be recycled, etc.2. SizeLength : 2270mm,2440mm,3000mmWidth:610mmThickness:50mm,75mm ... 42dB of sound insulation ratingl Heat Insulation:integration of polystyrene concrete , fly ash etc, high sound reflectionl Fire Resistance: ...