... used in central air-conditioning ducting, insulation workshops, cleaning rooms2. Material:Aluminium Foild+ phenolic/polystyrene(XPS)+ Aluminium Foild3.Confirm to ISO ... rooms, high class buildings, composite cold storages, containers, etc. Technical Data Sheet of Phenolic Foam Air DuctITEMUNITSPECIFICATIONDensitykg/m360~65Double side Aluminum thicknessmm0 ...