I want to know what the zoning sign of medical equipment warehouse looks like. Is it just printed on A4 paper or made into a billboard alone? thank you

The size of zoning signs is not specified, and the overall proportion is obvious and coordinated in the warehouse. It's best not to do it casually, but to do it regularly. The background color of the signboard and the regional separation line is the same, for example, the qualified area and the delivery area are white on a green background, and the separation line is also green; Similarly, the area to be inspected is yellow, and the unqualified area and the returned area are red.