BF90 Micro Ventilation Series

　　1. The frame features a stepped, concealed drainage system. The sash employs a drip line design and independent drainage channels to form a complete pressure-equal drainage structure, preventing rainwater infiltration.

　　2. A dedicated glass pad is designed using nylon material to enhance load-bearing stability. Diagonal installation prevents sash sagging.

　　3. A dedicated glass pad is designed to improve the overall window's thermal insulation performance and prevent condensation in low-temperature, high-humidity weather.

　　4. The pressure rigging is designed in a closed form, enhancing overall thermal insulation and wind pressure resistance.

　　5. The micro-ventilation window uses a 20cm wide ventilation fan design, which satisfies ventilation requirements while effectively addressing safety issues.

　　6. Utilizing 39mm PA66GF25 thermal insulation strips, the indoor and outdoor aluminum alloy components are combined using a roll-forming composite method. A water-air separation pressure strip effectively separates the outdoor watertight cavity from the indoor airtight cavity.

　　7. The intermediate sealing strip uses a soft-hard co-extruded foam strip with a 13.5-degree slope. Employing EPDM and soft-hard co-extruded foam strips, the triple-seal structure effectively reduces heat loss due to air convection.

　　8. Corner fittings use pin corner brackets with built-in guide channels. A special adhesive guiding design ensures the two-component adhesive effectively reaches the inner corners, resulting in high strength, durability, 30-micron precision, a naturally flat finish, and significantly improved overall efficiency!