... (10-30 years), Noise insulation, various colors for choice.2) Durable, no deformation, no crack after long-time usage.3) Security ... ) Surface treatment: Anode Anodizing, Electrophoresis Coating, Powder Coating, PVDF Painting, Break-Bridge and Heat Insulation, Film Attaching.7) Accessory system: High ... available. 3) Assist customers purchase with any other concerning products. Aluminum Sliding Window