Cloisonn é, one of the famous special metal crafts in China, reached its peak in production during the Jingtai period of the Ming Dynasty, producing the most exquisite and famous crafts. Therefore, later generations referred to this metal artifact as "Cloisonn é". Cloisonn é, officially known as "Copper Cloisonn é Enamel" or "Enamel Cloisonn é", is a type of utensil made of soft flat copper wire that is cut into various patterns and welded onto a copper mold. The enamel is then filled into the patterns and fired. Due to its popularity during the Jingtai period of the Ming Dynasty and mature production techniques, the enamel glaze used was mostly blue, hence the name "Jingtai Blue".

Cloisonne (Cloisonne), one of China's famous special metal crafts, to the Ming Dynasty Jingtai years this craft technology production reached the peak, the production of the most exquisite and famous crafts, so later called this metal for "cloisonne". Cloisonne is named "copper tire cloisonne enamel", commonly known as "enamel", also known as "inlaid enamel", is a kind of copper tire, with soft flat copper wire, pinched into various patterns and welded on, and then filled with enamel color glaze in the pattern of firing artifacts.