This standard specifies various operation indication symbols for metal cutting machine tools. This standard applies to the operation instruction signs, operation panels and signs of metal cutting machine tools and their accessories, and other machine tools can also be used as a reference.
GB/T 3167-1993 history
2015GB/T 3167-2015 Metal-cutting machine tools.Graphical symbols for operation indications
1993GB/T 3167-1993 Symbols for indications appearing on machine tools