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Third, aluminum alloy doors and windows have superior air tightness and water tightness, which is one of the key points of testing doors and windows. When the doors and windows are closed, the aluminum alloy doors and windows can prevent the air from penetrating into the room and isolate the rainwater from the outside.
Fourth, according to the test data of sealing performance and weatherability of aluminum alloy doors and windows, combined with the actual use, we can see that the aging process of aluminum alloy doors and windows is very slow, and the service life is very long.
Fifth, the surface of aluminum alloy doors and windows has been treated by various processes, which has excellent corrosion resistance and UV protection, and is not affected by air pollution. The color and pattern have a long retention time in appearance.
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