ფეროვოლფრამი
FerroTungsten 75%
| Tungsten (W) | 75,00% |
| Carbon (C) | 0.10 max |
| Silicon (Si) | 0.70 max |
| Manganese (Mn) | 0.40 max |
| Sulfur (S) | 0.05 max |
| Phosphorus (P) | 0.05 max |
| Arsenic (As) | 0.10 max |
| Antimony (Sb) | 0.10 max |
| Tin (Sn) | 0.10 max |
| Copper (Cu) | 0.15 max |
| Bismuth (Bi) | 0.02 max |
| Iron (Fe) | Balance |