GFI Pre-Insulated PIR Foam Insulation Duct Sheet with Aluminum Foil for HVAC Air Duct System Channel: Green Foam Insulation Material Co., Ltd China110 views • 16/07/2025Related VideosIntroducing GFI Fireproof PIR HVAC Air Duct Panels with Aluminum Foil!GFI Embossed Aluminum Foil PIR Duct Panel for HVAC Air Duct SystemsGFI PIR Duct Board with Black Aluminum Foil – High-Performance Insulation for HVAC Duct SystemPre-Insulated PIR Foam Duct Panels for HVAC Air Conditioning Ductwork