The difference between polished tiles and glazed tiles?
Just because of the surface layer, so the pattern will slowly fade, it looks very old, but the brick does not have this problem, the brick on the market, some does not completely block brick has a pattern, just by the superposition technique, will have almost half the above pattern.
The brick is a brick block pattern, glazed tile surface is a layer of glaze, the following are the embryo is yellow brick, looks like that, for a long time, this layer of glaze will slowly worn away
