GB/T 1149.4-2008
AbolishedInternal combustion engines - Piston rings - Part 4: Quality requirements
内燃机 活塞环 第4部分：质量要求
Application Summary AI generated
This standard specifies the quality requirements for piston rings used in internal combustion engines, including material properties, dimensional tolerances, surface finish, and inspection methods. It is applied in the manufacturing and quality control of piston rings for automotive, marine, and industrial engine applications. The standard ensures consistent performance and reliability of piston rings during engine operation 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.