Heat preservation for steel structure building Heat insulation for wall and roof of house to save energy For indoor partition wall,Train compartment density(kg/m3) width(mm) thickness(mm) length(m) packing/roll 1. specification range: Length: 1000-30000mm Width: 1200mm we can produce according to customer requirement Thickness: 25-200mm Density: 10,12,16,20,24,32,40,48kg/m