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See Chinese contents: QB/T 1888-1993 QB/T 1888-1993: Spokes and nipples for bicycles
This standard specifies the product classification, technical requirements, test methods, inspection rules, markings, packaging, transportation, storage of spokes and nipples for bicycles. This standard is applicable to the spokes and nipples of different materials for bicycles, which are specified in QB 1714 and quot;Bike - Naming preparation methods and models and quot;.
