HB 390-1971
right angle tool block (English Version)
- Standard No.
- HB 390-1971
- Language
- Chinese, Available in English version
- Release Date
- 1973
- Published By
- Professional Standard - Aviation
- Status
- Latest
- HB 390-1971
HB 390-1971 history
- 1973 HB 390-1971 right angle tool block
