Brinell Hardness Test: Material Testing & Penetration Resistance Explained

Ultra-high-quality double-opening wooden fire door designed for extra-large openings. WFR-BK-L delivers certified fire resistance and reliable smoke control, ensuring safe evacuation under real fire conditions. Engineered with a stable large-panel structure, low-deformation performance, and high durability for hotels, public buildings, and government projects. Proven in large-scale applications where fire safety, smoke containment, and structural stability are critical. #UAEConstruction #FireDoo