HB 0-12-1974
lightening hole in metal structure (English Version)
- Standard No.
- HB 0-12-1974
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Aviation
- Status
- Replace By
- HB 0-12-1983
- Latest
- HB 0-12-1983
HB 0-12-1974 history
- 1970 HB 0-12-1983 lightening hole in metal structure
- 1970 HB 0-12-1974 lightening hole in metal structure
