Aluminum Alloy Multi-Layer Door & Window Profiles

Premium Material & Leading Craftsmanship
Made of high-grade 6063-T5 aluminum alloy (tensile strength: 157MPa, yield strength: 108MPa, density: 2.7g/cm³), our profiles adopt advanced extrusion molding, precision CNC cutting and PA66 GF25 thermal insulation strip assembly technology. The ingot heating temperature is controlled at 400-520℃, with dimensional tolerance within ±0.1mm. All products meet ASTM and GB/T 8478-2020 standards, fully showing Conglin’s professional manufacturing strength and strict quality control. 
Excellent Thermal & Cold Resistance
Designed for multi-layer and thermal-insulated scenarios, the profiles have a thermal conductivity of ≤1.8 W/(㎡·K) and can withstand -40℃ to 80℃ extreme temperatures. Thickness ranges from 1.4-3.0mm (inner door: ≥2.0mm, outer door: ≥2.2mm, inner window: ≥1.4mm, outer window: ≥1.8mm), with multi-cavity structure enhancing insulation performance.
Durability & Corrosion Resistance
Surface treatments include powder coating, fluorocarbon coating and anodizing (thickness: 10-20μm), passing 1000-hour salt spray test. It resists corrosion, wear and UV damage, with a service life of 25-30 years and low maintenance needs. 
Customization & Practicality
We offer flexible customization of cross-sections (U-shaped, H-shaped, L-shaped), size (width: 50-120mm, length: 2-6m) and surface colors. Suitable for residential, commercial and industrial buildings, prefabricated processing ensures easy installation. The aluminum material is 100% recyclable, conforming to green building concepts.