Steel-Aluminum Combined Sectional Door

Product Specification

Feature

1. Steel-aluminum combined construction — durable steel bottom panels with aluminum full-view upper sections, offering both strength and modern aesthetics. 2. Two panel style options available — full-view aluminum panels or steel-aluminum combined panels to suit different architectural and functional requirements. 3. Excellent wind load resistance — up to 700N/m² for demanding environmental conditions. 4. Superior air permeability rating — Level 7 (GB/T7106-2008) for excellent sealing performance. 5. Good water tightness — Level 1 (GB/T7106-2008) for reliable weather protection. 6. Sound insulation — R=19dB for reduced noise transmission. 7. Wide size range — up to 6500mm in both width and height, with larger sizes available upon request. 8. Modern aesthetic design — clean, contemporary appearance that integrates with modern architectural styles. 9. Durable construction — steel panels with polyester coating provide impact resistance and corrosion protection. 10. Versatile applications — suitable for commercial buildings, car dealerships, office buildings, industrial facilities and high-end residential projects.