Appearance judgment
Look at the back of the swivel to see if the color is pure. Generally, solid color is milky white (white), not black or yellow, with black spots on the surface. Black and yellow prove that there are impurities in the brick itself, and the density of the brick is definitely reduced, which is easy to break and damage in the ordinary practical process.
See if the particles on the side of the tile are fine and uniform. If the particles are large and rough, and the density of bricks is brittle and loose, problems will definitely occur during use. For a simple example, when you get a house, it is usually a prototype house. The walls are all made of cement and the surface is very rough. When you use putty powder, the wall will be smoother and more delicate, which can be regarded as this standard.
Listen to the sound of tiles
Stand up the brick and knock it with your hands. The clearer the sound, the better the quality of the brick. The duller the sound, the worse the density of tiles, and the worse the pollution resistance and durability of tiles.
touch
The smoother the front (touched with the back of hand) feels at first, which proves that the fewer pinholes on the brick surface, the higher the anti-pollution ability. As long as it is not used in the bathroom or kitchen, you don't have to worry about anti-skid problems.
Color and surface treatment
It is clearly proved that the higher the gloss of the brick, the stronger the hardness of the brick and the higher the durability. On the contrary, the fuzzy shadow of the bulb proves that the hardness of the brick is low. Note: I mean polished tiles here, and they must be the same color when comparing again. You can't compare yellow bricks with white bricks, which is wrong.
If you buy ceramic tiles (wall tiles), you should look at the gap between the blank and glaze on the side of the tile and the thickness of the glaze. If it is too thin, you can't bring it, because it will break or leak after a long time. See if the glaze on the surface of ceramic tile is bright, bright and of good quality.
There are many users who are very entangled in the choice of tiles when decorating at home. They don't know what kind of tiles to choose. In fact, as long as they meet the above requirements, they are basically good products. Good tiles have good appearance and pure color, and should not be flawed or uneven in color. The quality of ceramic tiles can also be judged by the sound when knocking, and the quality of ceramic tiles with crisp sound is better. If you don't know how to choose, it is recommended to choose brand products.