Glass, mirror, pottery, china: these materials can be engraved and decorated, not cut or traced.
Usually the effect on glass, china and pottery is opacification and roughness of the surface.
Mirrors have the same effect of glass when engraved on the reflecting surface; the metallic side remains transparent when engraved on that side. Looking at the item with a light behind, the decoration shines.
It is interesting to use the laser technology in traditional fields, by engraving glass objects (dishes, glasses, trays, a.s.o.) and then plating with gold: the traditional method consists of many long processes. With the laser engraving machines it is also possible to work on plain surfaces, which are excluded with usual methods (with pantograph).

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