QJ 3116-1999
X-ray photographic reference film for internal defects of metal fusion welding (English Version)
- Standard No.
- QJ 3116-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- Professional Standard - Aerospace
- Latest
- QJ 3116-1999
QJ 3116-1999 history
- 1999 QJ 3116-1999 X-ray photographic reference film for internal defects of metal fusion welding
