... . supply to beijing "nest" Phenolic Foam Sandwich Panel with Aluminium & GI, it is widely used in central air-conditioning ducting Its of good appearance ... buildings, composite cold storages, containers, etc. Technical Data Sheet of Phenolic Foam Air DuctITEMUNITSPECIFICATIONDensitykg/m370-75 Double side Aluminum thicknessmm0.08Total thicknessmm20Thermal ...