Help needed! In the general diagram of the HG21543 tower platform, what does this circular symbol with numbers mean?
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As shown in the figure, in HG/T 21543-2009 \"General Diagrams for Tower Platforms\", within the schematic diagram showing the layout of the vertical ladder in this tower-type equipment, there are numerical codes inside the circular marks. I’d like to ask what this circular symbol means What do these codes “22”, “23”, “32” mean?
It should be the code for the node diagram; the 23 above indicates the sequence number of the node, while the 32 below indicates that it is on page 32.
The index numbers of the nodes, as well as the graphs or data, need to be checked one by one