Detailed Product Description Key Specifications/Special Features: 1) Cork Rolls size: Different sizes available,Nomal size is as following: Diameter:22x630mm,25x630,28x1000,30x1000,36x1000. 2)Material: natural composition cork 3)Density: Ddifferent densities available 170-300kg/M3 4)Standard range: Moisture proof ,Press crack protection,environmental insulation 5)Binder: polyurethane 6)ranule ...