
High Quality Bi-Fold Door Patio Folding Glass Exterior Doors Sliding Retractable Screen Doors Door. Customizable Options: Available in 12 colors and customized sizes for residential or commercial use. Advanced Security: Features car-grade composite foam strips to prevent accidental finger injury. Waterproof Design: High-speed rail design effectively solves water seepage and leakage issues. Energy Efficiency: Vertical isotherm design achieves high performance sound and heat insulation. Premium Hardware: Equipped with Kerssenberg profile hardware with a service life of 10 years. Space Maximization: Foldable design maximizes opening space for wide indoor and exterior views. Durable Construction: Aluminum alloy frame with 2.0mm profile thickness ensures long-term stability. Quality Certification: Certified with ISO9001 and Patent Design Certificate for guaranteed quality.