
11. Customized Aluminum Aluminium Glass Door Sound Insulation Heat Insulation Tempered Double Safety Manufacturer Sliding Frameless Security Balcony Interior. High Performance Insulation: Level 6 thermal and sound insulation with Level 7 heat and sound proofing capabilities. Robust Safety Structure: Tempered glass with anti-theft function and Level 6 wind/water resistance performance. Factory Direct Supply: Direct manufacturing from a 10-year specialized factory ensuring quality and price. Flexible Customization: Supports full customization, minor customization, and design/sample-based options. Strict Quality Control: 100% inspection of finished products including visual and functional checks. CE Certified Product: Meets CE certification standards for safety and performance reliability.