The CNC machine tool industry began to rise in China after 2000, and by 2018, it had reached a basic balance between supply and demand in the domestic market. Every year, hundreds of thousands of various types of CNC machine tools are produced and sold domestically, with unit prices ranging from tens of thousands to tens of millions. With the addition of auxiliary equipment and components, the industry's annual output value exceeds billions. In Ningbo, small CNC cars