1. Check the label: The product packaging box should have the factory name, factory address, product name, after-sales service phone number, specifications, quantity, trademark, production date and implemented standards. For porcelain tiles, it is required Check the CCC certification mark and choose products with radionuclides that meet Class A requirements for ceramic tiles used in interior design and decoration.

2. Take a closer look at the appearance: The glaze of good quality ceramic tiles should be smooth and delicate, the gloss glaze should be crystal clear and shiny, and the matte glaze should be soft and comfortable.

Under sufficient natural light or fluorescent lamps, place the bricks 1 meter away and observe vertically. No obvious glaze defects should be visible.

The patterns of patterned bricks should be delicate and realistic, without obvious defects such as lack of color, broken lines, and misalignment.

The shading and trademarks on the back of high-quality ceramic products are clear and complete, with few glaze marks or defects.

3. Splicing effect: The size deviation of good ceramic tiles is small. Place a batch of products vertically on a flat surface to see if there is any unevenness.

To check the flatness, you can put the edges of two bricks close together to see if there are any gaps.

Good products have little deformation, and the brick surface will be smooth and beautiful after paving.

Look at the color difference of the product. Put a few bricks together and look carefully under sufficient light. Products with different shades of tones will have poor overall effect after paving.

4. Knock and listen: Knock the tile gently and listen carefully to the sound. Products with better quality will sound crisp and pleasant to the ear.

Poor quality products will make an "empty" sound when knocked due to improper raw materials, short firing cycle, and low firing temperature.

5. Weigh the weight: Weigh the weight of the ceramic tiles. Generally speaking, for ceramic tiles of the same specifications, those with greater weight have lower water absorption and better intrinsic quality.

6. Comparative varieties: Floor tiles are divided into glazed floor tiles and unglazed floor tiles according to the glaze condition.

Glazed floor tiles are mainly used for floor decoration in bathrooms and kitchens, and are used in conjunction with interior wall tiles.

Most floor tiles have been surface polished and become polished tiles.

The water absorption rate of most polished tiles is less than 0.1, also known as vitrified tiles.

The surface of polished tiles is as smooth as a mirror and is a high-end ceramic product.