HB/Z 22-1980
Standard ruler technical conditions (English Version)
- Standard No.
- HB/Z 22-1980
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Aviation
- Status
- Replace By
- HB/Z 22-1991
- Latest
- HB/Z 22-1991
HB/Z 22-1980 history
- 1970 HB/Z 22-1991 Technical conditions for staff gauge
- 1970 HB/Z 22-1980 Standard ruler technical conditions
