QJ 409-1978
Taper shank double-ended smooth plug gauge (D=4~30) (English Version)
- Standard No.
- QJ 409-1978
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Aerospace
- Status
- Latest
- QJ 409-1978
QJ 409-1978 history
- 1970 QJ 409-1978 Taper shank double-ended smooth plug gauge (D=4~30)
