This standard specifies the format size and format of drawings, as well as related additional symbols. This standard applies to technical drawings (including original drawings, base drawings and reproduction drawings, etc.) and related technical documents.
GB/T 14689-1993 history
2008GB/T 14689-2008 Technical drawings.Size and layout of drawing sheets
1993GB/T 14689-1993 Technical drawings--Size and layout of drawing sheets