Determine the pros and cons:

1, the glaze should be smooth and delicate;

2. Put several tiles together and look carefully under the lamp. Good products have little color difference, and the colors between products are basically the same; The poor products have large color difference and different shades between products;

3. The color and chromaticity of ceramic tiles are clear and natural, which shows that the degree of porcelain is high, the chromaticity is unclear and the degree of porcelain is low;

4. The pattern should be exquisite and realistic, without obvious defects such as lack of color, broken line and dislocation;

5. Drop a few drops of tea juice or water on the back of the tile. After a few minutes, according to the degree of inhalation and diffusion of water droplets, the quality without water absorption or low water absorption will be good;

6. Tap the ceramic tile to hear whether the sound is crisp, the crisper the sound, the higher the porcelain quality and density, and the better the hardness;

7. Scrape tiles with sharp objects. If there are scratches, it means that poor glazing is easy to make people slip. After the glazed surface is polished, the dirty brick surface will not be cleaned; brick

8. When purchasing, visually inspect the inner surface of one meter for pinholes. If there are pinholes, it means that the glaze fusion is incomplete, which is easy to cause dirt accumulation;

9. Warp observation: Observe whether the side of the tile is straight with naked eyes. If the warping is serious, it will affect the firmness of tile paving in the future;

10, specifications can be measured with calipers. The deviation of good product specifications is small, the product is even after paving, the brick joints are straight and the effect is good. Poor product specifications have large deviation, and the sizes between products are different;

1 1. The color of the external wall brick should be in harmony with the surrounding environment. High-rise buildings generally should not use white or light-colored exterior decorative bricks to avoid lack of texture; In interior decoration, the colors of floor tiles and interior tiles should be matched with each other. All facilities should be based on sanitary ware, and the quality and grade of wall and floor tiles and various accessories including hardware and other supporting materials should be coordinated with them;

12, choose tiles according to the use environment. For example, it is best to choose anti-slip and easy-to-clean tiles in the bathroom.