Chinese medicine treatment needs "hope, smell, ask, cut", now in the purchase of tiles, we can "listen, water, cut, see" four aspects to diagnose the quality of tiles.
1. "listen": with the hands of the thumb, index finger and middle finger clip tiles corner, easy to hang, the other hand index finger tapping the lower part of the tile, such as the sound clear, sounds for the top grade, such as voice bored, astringent turbidity for the defective.
2. "Water": the water drops in the tiles on the back, after the water spread slowly tiles density, as the top grade.
3. "cut": look at the cracks in the tile break. Crack at the fine, hard and brittle, color and common for the top grade.
4. "see": in sufficient natural light or fluorescent light irradiation, the brick on the 1 meter away from the straight investigation, should not see a significant glaze defects should be delicate, vivid, no significant lack of color, Broken lines, dislocations and other shortcomings; reverse shading, trademarks and other clear, complete, rare glaze or defect; a group of goods straight on a plane to see if there is no good and bad phenomenon; pick a smooth appearance of the glass , Plastic plate, table top or ceramic tile, the side of the brick and the front side of the parallel close to the surface, the investigation of the degree of flatness and the degree of surface warpage. Can also be two brick side close together to see if there is no gap.