HB 3115-1978
Removable round ring (English Version)
- Standard No.
- HB 3115-1978
- Language
- Chinese, Available in English version
- Release Date
- 1980
- Published By
- Professional Standard - Aviation
- Status
- 1988-01
- Replace By
- HB 3115-1987
- Latest
- HB 3115-2000
HB 3115-1978 history
- 2000 HB 3115-2000 Removable round ring
- 1987 HB 3115-1987 Removable round ring
- 1980 HB 3115-1978 Removable round ring
