2. Clean and remove dust. For friends who love to clean, it is best to use pure cotton knitwear as a rag to wipe the surface of the iron door. For the dust in the depression and relief decoration on the iron door, it is best to use a fine soft wool brush to remove dust.

3. Stay away from acid and alkali. The acid and alkali that have a corrosive effect on the wrought iron door is the "number one killer" of the wrought iron door. If the wrought iron door is accidentally stained with acid (such as sulfuric acid, vinegar), alkali (such as methylalkali, soapy water, soda water), should be immediately washed with clean water, and then dry with dry cotton cloth.

4. Insulate yourself from moisture. The wrought iron door should be installed in a more ventilated place, and the moisture will cause the metal to rust, chromium plating and so on.

5. Remove rust. If the iron is rusty, do not take it upon yourself to sand it. If the rust is small and shallow, cotton can be dipped in oil and applied to the rust. After a while, wipe with a cloth to eliminate the rust. If the rust has expanded and become heavy, the relevant technicians should be asked to repair it.