Brief description of embodiments of the indentations on a piece made of porcelain or earthenware

摘要

A mask comprising, on the one hand, of the solid parts (3), capable of withstanding a jet of abrasive material, and secondly openings adapted to permit the passage of the abrasive material, is placed in front of the part (8) is sprayed onto the mask, at least facing the openings, a material (16) capable of initiating the porcelain or earthenware, so as to obtain one or several hollow of the shape and the depth voulues.la part obtained by this process has reliefs in the hollows, mats, and well marked.