首页>
外国专利>
A method making it possible to give the glass, to the crystal, mica, galalith, celluloid or to any other transparent material, the appearance of the enamel metals and novel industrial products resulting from the application of this process
A method making it possible to give the glass, to the crystal, mica, galalith, celluloid or to any other transparent material, the appearance of the enamel metals and novel industrial products resulting from the application of this process