QB/T 1721-1993
bicycle chain guard (English Version)
- Standard No.
- QB/T 1721-1993
- Language
- Chinese, Available in English version
- Release Date
- 1993
- Published By
- Professional Standard - Light Industry
- Latest
- QB/T 1721-1993
- Scope
- This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of bicycle chain covers. This standard applies to general bicycle chain covers specified in QB 1714 "Bicycle Naming and Model Preparation Methods".
QB/T 1721-1993 history
- 1993 QB/T 1721-1993 bicycle chain guard
