Kangma is a personal QR 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. ? The introduction of the health code aims to make the work of returning to work more accurate, scientific and orderly.
There are three kinds of "health codes": the green code can be directly input, the red code is isolated 14 days, and the yellow code is isolated within 7 days.