| 摘要 |
PROBLEM TO BE SOLVED: To provide a tile on which the back side leg pattern of another stacked tile is quite not formed or does not stand out, even when sintered in a state stacked on the other tile, has an extremely excellent appearance quality and can be produced in a high yield. SOLUTION: The back surface of a tile 7 comprises a main surface 9 and dents 8 depressed from the main surface 9. The main surface 9 comprises a high place 9a which is extended in parallel to the periphery of the tile 7 in the slightly inner portion from the periphery of the tile 7, a low place 9b which is gradually lowered from the high place 9a to the center of the tile 7, and an inclined surface 9c gradually lowered from the high place 9a to the side edge of the tile 7. |
