Wipe the floor with a clean cloth, then rinse it with clean water. If there are oil stains or dirt, you can use detergent to scrub. Be careful not to apply too much force when wiping to avoid damaging the floor.

Dip a clean towel in an appropriate amount of water, wring it out, then put it in a vacuum cleaner to remove dust from the ground, and finally wipe it clean again with a damp towel.

First, use a mop to clean the debris on the ground (such as paper scraps, cigarette butts, fruit peels, etc.), and then rinse it off with clean water. Be careful not to scratch the surface of the floor when using the mop.

When it is necessary to disinfect the shopping mall floor, you can dilute it with 84 disinfectant or bleach powder mixed with water, spray it directly onto the floor, and then wipe it. (Note that the concentration should not be too high)

First, prepare a bucket of white cement and mix it with water to form a slurry for later use. Then, use a brush to evenly apply the cement slurry to the wall (with a thickness of about 2 millimeters). After it dries completely, you can proceed to the next step - polishing and grinding. It should be noted that before performing this step, it is necessary to ensure that the wall has dried before processing!

First, use a scraper to remove the old paint film (including putty layer) on the wall, and then use sandpaper to smooth out the uneven surface. This step is complete! It should be noted that during the polishing process, the force should be moderate and a certain speed should be maintained! Otherwise, it is easy to cause damage to the wall. After completion, remember to rinse it with water and let it dry.