How to maintain doors and windows after cleaning With the improvement of people's living standards and the continuous improvement of the pursuit of quality, various decoration materials have gradually begun to pay attention. Door and window equipment is a good example. Among them, plastic steel doors and windows have won the favor and attention of many families because of their unique advantages and performance. Of course, the realization of many functions is inseparable from the processing of plastic-steel door and window equipment. As a user, the cleaning of plastic-steel door and window equipment is also very important. When necessary, the service life of the equipment can be improved. What details should be paid attention to when cleaning the equipment?