ICNEA 3231—Tungsten and molybdenum smelting

Where 3231 sits

1. C Manufacturing industry
2. 32 Non-ferrous metal smelting and rolling processing industry
3. 323 Smelting of rare and rare earth metals
4. 3231 Tungsten and molybdenum smelting

What 3231 includes

• Including the smelting activities of the following tungsten and molybdenum：
• Tungsten: tungsten powder, tungsten bar (rod), tungsten granule, tungsten slab, other tungsten
• Molybdenum: molybdenum powder, molybdenum bar (rod), other molybdenum

3231 in other systems