Aluminum alloy doors and Windows accessories is the heart of aluminum alloy doors and Windows: aluminum main door in the home with a long time will be aging, hinge fracture, related hardware accessories (hand, a word lock, etc.) start the phenomenon of inflexibility, resulting in aluminum alloy doors and Windows are not tight.
And our household necessities: aluminum alloy doors and Windows also have a period of life, aluminum alloy doors and Windows will also be with the passage of time, there will be different degrees of aging.
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