Building door and window inspection

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Building door and window inspection

The five properties of door and window testing items are: 1. Wind pressure resistance: the ability to resist wind pressure; 2. Air permeation performance: the air permeability per unit time when the pressure difference between the inside and outside of the joint per unit length is lOPa; 3. Rain permeability performance: the internal and external pressure difference that can be withstood when the rainwater spray is not immersed in water; 4. Thermal insulation performance: indicators of thermal insulation capacity; 5. Sound insulation performance: the ability to block noise.

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