gb2011-1987gb2011-1987
gb2011-1987gb2011-1987, Total:2 items.
The international standard classification for "gb2011-1987gb2011-1987" includes: Mining and quarrying .
The Chinese standard classification for "gb2011-1987gb2011-1987" includes: Manganese ore .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 2011-1987 Method of sampling and sample preparation of manganese ores in bulk
- GB 2011-1987 Method of sampling and sample preparation of manganese ores in bulk
