... .Apply in construction, buildings, ceiling 2.OEM/ODM acceptable 3.Fire grade:B1 4.ROHS, ISO NBR/PVC heat buildings insulation board ... thermal conductivity, so they're widely used in construction, decoration, ceiling, etc. Insulation board is ideal for applications in:DuctworkDual temperature ... lengthSheet in rolls 1 mtr or 2 mtr width NBR/PVC heat buildings insulation board