GB/T 4458.5-2003
ActiveMechanical drawings--Indication of tolerances for size and of fits
机械制图 尺寸公差与配合注法
Application Summary AI generated
This standard specifies the methods for indicating size tolerances and fits on mechanical drawings, including how to annotate tolerance values, deviation symbols, and fit codes. It is applied in engineering design, manufacturing, and quality inspection across industries such as machinery, automotive, and aerospace to ensure consistent interpretation of dimensional requirements. The standard is used by drafters, engineers, and inspectors to communicate precise assembly conditions and manufacturing limits in technical documentation.
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