GB/T 3390.4-2013
ActiveHand operated socket wrenches - Attachments
手动套筒扳手 连接附件
Application Summary AI generated
This standard specifies the dimensions, technical requirements, and testing methods for attachments used with hand-operated socket wrenches, such as extensions, universal joints, and adapters. It is applied in the manufacturing and quality inspection of manual socket wrench sets, ensuring interchangeability and mechanical reliability for automotive repair, machinery assembly, and general maintenance tasks.
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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.