How to maintain doors and windows

Regularly clean the dust on doors and windows to keep them clean and shiny, as well as the glass and hardware.
If oil stains or other difficult to clean items are contaminated on doors and windows, it is best not to use strong acid or alkali solutions for cleaning. Otherwise, it is not only easy to damage the surface smoothness of the profile, but also to damage the protective film and oxide layer on the surface of the hardware, causing corrosion of the hardware.
Particles and other debris on the inside of the frame should be promptly cleaned to prevent them from blocking the drainage channel and causing poor drainage and water leakage.
When opening doors and windows, the force should be moderate, and the speed of opening and closing should be kept even as much as possible.
Try to avoid hitting doors and windows or scratching the surface of profiles with hard objects.
When it is found that doors and windows do not open flexibly or have other abnormal situations during use, the cause should be promptly investigated. If the customer cannot eliminate the fault, they can contact the door and window manufacturer and supplier so that the fault can be eliminated in a timely manner.