GB/T 4457.2-2003
ActiveTechnical drawing--Drawing presentation--General principles of leader lines and reference lines
技术制图 图样画法 指引线和基准线的基本规定
Application Summary AI generated
This standard specifies the general principles for the representation and layout of leader lines and reference lines in technical drawings. It is applied across all engineering and manufacturing industries in China, including mechanical, electrical, and civil engineering, to ensure consistent and clear annotation of parts, dimensions, and notes in product design and documentation.
Related Standards
GB/T 24740-2009
Technical product documentation—Symbol of mechanical manufacture orientation and clamping
GB/T 19096-2003
Technical drawing--Drawing presentation--Vocabu-lary and indications for edges of undefined shape
GB/T 6567.5-2003
Graphical symbols for piping systems--Axonometric representation of graphical symbols for piping，piping accessories and valves etc
GB/T 4459.4-2003
Mechanical drawings--Conventional reprensentationof springs
GB/T 4459.2-2003
Mechanical drawings--Conventional representation of gears
GB/T 4458.5-2003
Mechanical drawings--Indication of tolerances for size and of fits
GB/T 4458.4-2003
Mechanical drawings--Dimensioning
GB/T 4458.2-2003
Mechanical drawings--Item references and its arrangement for assembling drawings
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.