GB/T 131-1993
AbolishedMechanical drawings--Surface roughness symbols and methods of indicating
机械制图 表面粗糙度符号、代号及其注法
Application Summary AI generated
GB/T 131-1993 specifies the symbols, codes, and annotation methods for indicating surface roughness on mechanical drawings. It is applied in engineering design, manufacturing, and quality inspection across industries such as machinery, automotive, and aerospace to ensure consistent communication of surface finish requirements. This standard is used by engineers and procurement professionals to define and interpret surface texture specifications for components during production and testing.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.