
Ventilation Duct Glass Wool Board. Excellent Thermal Insulation: Porous structure provides superior heat preservation for buildings and industrial pipes. Sound Absorption Performance: Fine gaps and fiber intertwining effectively reduce noise in partitions and compartments. Fire Resistant Material: Incombustible Grade A material suitable for fireproof and heat resistant applications. Customizable Dimensions: Thickness 25-100mm, Length 600-2400mm, and Width 600-1200mm available. Fast Delivery: Standard delivery time is about 7-10 days with strict quality control. Free Sample Service: Free samples available by freight collect for quality verification. Professional After-Sales: Dedicated team provides support and updates production process via photos.