| 摘要 |
<p>A ceramic tile has its rear uniformly configured as small frusto-conical or frusto-pyramidal tapered projections 2 of constant height, thus eliminating internal stresses during firing, eliminating zones of different color tone on the front face, and improving the gripping coefficient when laying. A portion of the projections 2, in groups of at least two, are taller to form feet 3 for resting during stacking.</p> |
