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The new Bridge-cut-off aluminum windows inherit the traditional advantages of general aluminum alloys, on the basic of this, it adds the great performance of heat insulation and noise protection. This well-designed windows must meet all your needs.
Good Performance: (1). Watertightness 7A(2). Air permeability 2 Class(3). Resistance to wind load C3 Class(4). Thermal insulation (5). Noise insulation 30-40db(6). Burglar resistance(7). Radiation resistance