The first step: look at the glaze has no pinhole, spots, glazed texture, there is no color difference;
The second step: to see whether the ceramic tile deformation, the measurement of tile two diagonal is equal;
The third step: to see the ceramic tile water absorption rate, with droplets on the back of the brick, diffusion area, the longer the suction dry time, the lower the water absorption rate, the better the quality;
The fourth step: listens to the sound, knocks the tile with the hand, the sound is shrill, the quality is better;
The fifth step: weigh weight, the heavier the weight, the better the texture;
Sixth Step: Open box inspection, will be different boxes of products to draw a piece, tile after looking at a colorless, size or no size.