1, a flexible spindle machine, is mainly used for large-scale jade carving works that cannot be carried on the desktop, and usually cooperates with hand-held equipment such as an electric mill to complete detailed work that cannot be carried out by the electric mill. Because the fixed grinding head on the desktop is not as flexible as the handle when dealing with some models, many people will choose to apply the flexible shaft machine to some smaller or more special models.

2, dental machine, dental machine is a medical equipment borrowed by dentists, its flexibility is the best of all models at present, so it is mainly used for detail processing, and it has almost no application value in heavy work.

Extended data

Contemporary jade carving techniques in China can be divided into two schools:

1, the northern faction is represented by Beijing, covering northern provinces and cities such as Liaoning, Tianjin, Hebei, some Henan and Xinjiang.

2. The Southern School includes the areas along the Yangtze River and its south, and is divided into several tribes, including Shanghai workers represented by Shanghai, Suzhou workers represented by Suzhou, Yangzhou workers represented by Yangzhou, Guangdong workers and Fujian workers. Shanghai jade carving is dominated by white jade, with a small amount of jadeite.

Reference source: Baidu Encyclopedia-Jade Carving