Is the health code in Hunan Province fixed?

That's not true. The health code of Hunan province is not fixed, because the health code of Hunan province is automatically located. If you go to other provinces, by plane, train or high-speed rail, the health code will change according to the location. Health code is a personal two-dimensional code based on actual real data, which is generated by citizens or people who have returned to work on their own online declaration and background audit.