... . PanelName: PU Sandwich PanelType: PU-XXBrand: Guanhong.Materials: Hot Galvanised SteelPU: Fireproof, hot & sound insulation, waterproofWorking life: More than 20 years.Specification:NAMEPU Sandwich Panel HS ... color, temperature – keeping, hot & sound insulation, anti water and fire resistant. anti UV, keep good condition for long time, easy installation Rock wool ...