QJ 400-1978
Countersinking of countersunk screw holes (screw diameter = M3~M10, ψ = 90°) (English Version)
- Standard No.
- QJ 400-1978
- Language
- Chinese, Available in English version
- Release Date
- 1978
- Published By
- Professional Standard - Aerospace
- Latest
- QJ 400-1978
QJ 400-1978 history
- 1978 QJ 400-1978 Countersinking of countersunk screw holes (screw diameter = M3~M10, ψ = 90°)
