Cloisonné

Beijing is the cradle of cloisonne technique. Cloisonné is an ancient technique for decorating metalwork objects.  
(Compartments: cloisons in French)

When doing the cloisonne, firstly, use the red coppery to make the body, secondly, stick the pattern on the bronze body by oblate and thin brass wires, then fill the inlay pattern by enamel glaze material in different colors, the last procedure is the firing over and over, polishing and gilding.