GBT4139
GBT4139, Total:3 items.
The international standard classification for "GBT4139" includes: Ferroalloys .
The Chinese standard classification for "GBT4139" includes: Iron alloy .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 4139-1987 Ferrovanadium
- GB/T 4139-2004 Ferrovanadium
- GB/T 4139-2012 Ferrovanadium
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