... made from polyurethane with color steel sheet for finishing surface, which is excellent insulation for building, especially applied to the cold storage, ... sheet: painted steeel sheet, stainless steel sheet, aluminium sheet for choice.2. Density: 38~40kg/m3,40~42kg/m3,42 ... ~45kg/m3 for choice3. Thickness: 75mm, 100mm, 120mm, 150mm, 200mm etc. for choice4. Standard width: 980mm, 1180mm ...