1. The tiles on the floor and wall have been used for a long time, and they will lose their luster if they are polluted or worn. Especially the corners and corners, the wear is particularly severe. The reason why the tiles are not bright is partly caused by stains, which are not usually cleaned.

2. In addition, it may also be a cleaning agent. If you choose some high-strength cleaning agents, although the effect is good, it is also very corrosive, and it is easy to make the surface lose its luster.

3. Do a good job of daily cleaning at ordinary times. It is best to choose mild detergent and soap for cleaning, which can keep the surface clean. In addition, tiles should be waxed regularly, especially polished tiles. For example, waxing once every 2 to 3 months can keep the gloss forever.