... , can be closed and locked firmly Glass: Double clear safety (Nitrogen-gas Filled, Low-E, French Green, Tinted, Clear Tempered, Frosted, ... field of vision.6) Surface treatment: Anode Anodizing, Electrophoresis Coating, Powder Coating, PVDF Painting, Break-Bridge and Heat Insulation, Film Attaching ... available. 3) Assist customers purchase with any other concerning products. Aluminum Sliding Window