2. Ceramic tile manufacturing

From a technological point of view, ceramic tiles can be divided into four categories:

• unglazed vitrified tiles :

  • porcelain tiles,

  • polished tiles,

  • vitrified porcelain stoneware tiles,

  • rustic stoneware tiles ;

• glazed vitrified tiles :

• • the shard is often less vitrified than in the previous case and therefore slightly porous.

  • vitrified porcelain stoneware tiles,

  • rustic stoneware tiles ;

• glazed porous tiles :

  • earthenware and terracotta tiles ;

• ...