What does the national defense industry metering station do? Are there any specific requirements when recruiting?

The national defense industrial metering station is a laboratory where the national defense system verifies and calibrates the measuring instruments of military enterprises or laboratories, and is engaged in the research of metering technology, methods and standards. Similar to the metrological technical institutions under the local bureau of quality and technical supervision. When recruiting, you should know more about the documents established by the national defense industrial metrology station, the metrology law, the detailed rules for the implementation of the metrology law, the relevant national military standards, and the relevant knowledge of metrological verification and calibration. The more, the better.

For example, Beijing 304 Institute and so on.