There are good and bad tiles, and each brand of tiles basically has several different grades of tiles. In order to help you identify and evaluate the quality of ceramic tiles, I suggest you refer to several principles:

1. When choosing ceramic tiles, be sure to consult the grade of ceramic tiles, such as superior products (AA grade), first-class products (A grade) and qualified products. Try to choose the best products here.

2. Pay attention to the appearance of tiles. A good ceramic tile has no defects such as concave-convex, bulging and warping, but the edge should be smooth and the surface should be free of cracks, damage, deformity or attached impurities.

3. Look at the glaze of ceramic tile, the surface is uniform, smooth and bright, and the color should be consistent. (If there are particles on the surface of the ceramic tile, it is not smooth, the color is different, the thickness is uneven, or even uneven, it is not a good product. )

4. Looking at the copy, the color of a good tile pattern is clear, and there is no obvious color leakage, dislocation, broken line and different shades.

5. Looking at hardness, ceramic tiles have good hardness, strong toughness, no brittle loss and good compactness.

6. Absorb water, you can drop water on the surface of the tile to see how quickly it erodes after being scattered. The slower the water absorption, the higher the density of tiles. On the contrary, the faster the water absorption, the thinner the density and the better its internal quality.

7. Listen to the sound and hang it easily with your fingers. If the voice is crisp and pleasant, it is the top grade. If the sound is dull, it is inferior.

With the above standards, no matter what kind of tiles you are facing, it can help you identify them.

I hope the above answers can solve your questions in time. ......