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Shuangming PA66GF25 Plastic Extrusion Polyamide Thermal Break Insulation Strip for Window. Superior Insulation: Thermal conductivity of 0.22-0.28 W/(m-K), 300x better than aluminum, reducing energy costs. Noise Reduction: Provides superior acoustic performance compared to standard aluminum alloy windows. Durable Material: Made of PA66GF25 with excellent corrosion, weather, and alkali resistance for long lifespan. Customizable Design: Supports custom shapes, laser printing, and exclusive mold design based on CAD drawings. Certified Quality: Complies with GB/T 23615.1-2017, EN 14024, and ISO 9001 standards. Low Water Absorption: Water absorption <0.8%, tested via ASTM D570, suitable for humid climates.