If you want Windows and doors to be more durable, these maintenance must understand!
In real life, I believe that most owners are more casual about the maintenance of doors and Windows. That kind of casual is that they do not wipe the Windows and maintain the hardware accessories for a year, but they also want the service life of doors and Windows to be longer. In fact, this is impossible. If you want to extend the service life of doors and Windows, you should start from maintenance. Then how to maintain doors and Windows is to maintain them in place.