... sheet 610*915mm,640*950mm,Density:180-350kg/m3 Mositureproof,Sound proof,Heat Insulation. Natural,nontoxic. Many usages Cork sheet1. Mould size ... well.2. Density:120kg/m3-400kg/m3.3. Function:Mositure proof,Sound proof,Heat Insulation.4. Advantage :Natural, Free of Formaldehyde,eco-friendly ...