Maintenance of aluminum powder coated windows: dust on aluminum alloy doors and windows should be cleaned regularly, and keep aluminum alloy doors and windows and glass, hardware clean and bright. 

If the aluminum alloy doors and windows contaminated with oil stains and other difficult to clean things, it is best not to use strong acid or alkali solution to clean, otherwise not only easy to make the profile surface finish damage, will destroy the protective film and oxide layer on the surface of the hardware and cause corrosion of the hardware.