YBJ 218-1989
Standards for quality inspection and evaluation of shaft and roadway engineering in metallurgical mines (English Version)
- Standard No.
- YBJ 218-1989
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Ferrous Metallurgy
- Status
- 2014-03
- Replace By
- YB 4391-2013
- Latest
- YB 4391-2013
YBJ 218-1989 history
- 2013 YB 4391-2013 Code for acceptance of sinking and drifting engineering of ferrous mines
- 1970 YBJ 218-1989 Standards for quality inspection and evaluation of shaft and roadway engineering in metallurgical mines
YBJ 218-1989 Standards for quality inspection and evaluation of shaft and roadway engineering in metallurgical mines was changed to YB 4391-2013 Code for acceptance of sinking and drifting engineering of ferrous mines.
