What is the correct way to use a tile leveler

What is the correct way to use a tile leveler

(1) If the wall area is not large, a ruler of 1.5 meters to 2 meters is usually used to check the flatness of the wall surface.
(2) If the wall has a large area, usually find a few more leveling points on the wall, and then level it.

What is the correct way to use all-ceramic tiles?

Features

(1) The colors are bright and soft, and there is no obvious color difference.
(2) High-temperature sintering and complete porcelainization produce a variety of crystals such as mullite, which have stable physical and chemical properties, strong corrosion resistance and anti-fouling properties.
(3) The thickness is relatively thin, the flexural strength is high, the brick body is light, and the building load is reduced.
(4), no harmful elements.
(5) The flexural strength is greater than 45Mpa (granite flexural strength is about 17-20Mpa).
(6) Water absorption is less than or equal to 0.5%