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This paper discussed the jade-carving techniques, summarized the characteristics of blade saw cutting, thread cutting and wheel cutting, and then pointed out that there should not be any wheel tool or wheel cutting technique in the prehistoric period and the Xia, Shang and Western Zhou Dynasties. The metal wheel tool first appeared in the Spring-and-Autumn Period. Since then, the jade art was improved more and more because of the development of private craftsmanship, the commerce and the destruction of the rigid ritual system.

Concerning string cutting, tuo (emery wheel) cutting and tuo carving – and discussion of the date the tuo began to be used