Class a Fireproof Glass Wool Board for Fire Smoke Exhaust System.

Class a Fireproof Glass Wool Board for Fire Smoke Exhaust System. Class A Fire Resistance: Non-combustible material meeting Class A fire standard for safety. Customizable Dimensions: Supports customized length, width, thickness, and density for projects. Free Test Samples: Buyers receive free small samples; only express freight cost applies. 24/7 Technical Support: Online guidance, construction plans, and parameter matching provided. Fast Production Lead Time: Standard stock in 14 days; customized orders in 15-22 working days. Diverse Certification: ISO, CE, and ASTM certified; meets green building environmental requirements. Moisture and Mildew Resistant: High chemical stability with anti-mildew and moisture-proof properties.