QJ 657-1982
Symmetrical guide column rectangular upper formwork (English Version)
- Standard No.
- QJ 657-1982
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Aerospace
- Status
- Latest
- QJ 657-1982
QJ 657-1982 history
- 1970 QJ 657-1982 Symmetrical guide column rectangular upper formwork
