Why are pandas of health code different?

The styles received are different. The hygiene code in two places must be the same, but when the same hygiene code is made in two places, the color of the machine is different. There are 12 models of red pandas, and the styles received are different, so the pandas on the health code are different. 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.