Why can't Langfang nucleic acid sampling code be downloaded?

The system does not support it. The two-dimensional code of nucleic acid sampling is a two-dimensional code obtained through information registration in the process of nucleic acid detection for all employees. According to Langfang official inquiry, the nucleic acid sampling code system does not support downloading, and users can save or print screenshots. Two-dimensional code, also known as two-dimensional bar code, refers to another readable bar code based on one-dimensional bar code, which uses black and white rectangular patterns to represent binary data, and the contents contained in it can be obtained by scanning equipment.