HB 789-1973
1-9 grades of precision with a single-head disc-shaped caliper D = 1-260mm (English Version)
- Standard No.
- HB 789-1973
- Language
- Chinese, Available in English version
- Release Date
- 1974
- Published By
- Professional Standard - Aviation
- Status
- Latest
- HB 789-1973
HB 789-1973 history
- 1974 HB 789-1973 1-9 grades of precision with a single-head disc-shaped caliper D = 1-260mm
