YS/T 231-1994
Technical requirements for tungsten concentrate (English Version)
- Standard No.
- YS/T 231-1994
- Language
- Chinese, Available in English version
- Release Date
- 1981
- Published By
- Professional Standard - Non-ferrous Metal
- Status
- 2007-10
- Replace By
- YS/T 231-2007
- Latest
- YS/T 231-2015
YS/T 231-1994 history
- 2015 YS/T 231-2015 Tungsten concentrate
- 2007 YS/T 231-2007 Tungsten concentrate
- 1981 YS/T 231-1994 Technical requirements for tungsten concentrate
