80% of the accessories of the grinding machine and polishing machine are imported from the United States, Japan and Taiwan (for example, DuPont raw materials are used for wind impeller, Japanese materials are used for blades, Japan ijk is selected for bearings, Taiwan bar is used for small axis, etc.), 

12% of the accessories are directly imported from Taiwan, and 68% of the accessories are entrusted to Taiwan funded processing plants (with complete vehicle, washing and grinding equipment, complete testing equipment, and rich in Mechanical processing experience, with LSO management system) processing molding,