How is the development and evolution of pinch enamel?

Silk enamel originated in Persia (today's Iran), mature in the 5th to 6th century, and later spread from Persia to Arabia, East Rome and other places, the Yuan Dynasty has been introduced to China Yunnan. Early Ming Cao Mingzhong "Gegu Essentials" in the "eclipse kiln" article cloud "to copper for the body, with the drug burned into five-color flowers, and the Buddha Lang embedded similar, have seen incense burners vases, and child marigolds and so on, but can be used in the cabinet of the woman, not the scholarly room QingYu also. Also known as the ghost country kiln, today's Yunnan people in Beijing more than wine marigolds, commonly known as ghost country inlays, Neifu authors, fine and lovely." Cloisonné is China's silk enamel, in the Palace Museum in Beijing and the Shenyang Museum to save the Ming dynasty during the Xuande years made in kind, is so far the earliest cloisonné works found. More varieties, fine production, the number of large, high level of art, its modeling style have been nationalized, is the world's precious artistic heritage in the craft of silk enamel.