Door handle cleaning tips
The doorknob is easy to get dirty, and sometimes you feel that the key is not easy to open, which is caused by the accumulation of dust in the keyhole. You can use a vacuum cleaner to align the keyhole, suck out the dust, and add a few drops of lubricating oil. If the doorknob is made of metal, it can be polished with toothpaste. If the doorknob is rusted, wipe it with a soft cloth dipped in tomato juice, which can effectively remove the rust without leaving scratches.






