Ferro Niobium ti nki owo lulú
Ti o gbona tita Ferro Nibium ti n gbe ni idiyele lulú
Apejuwe Ọja
| Kemistri / ite | Feb | Feb | |
| Ta + Nb≥ | 60 | 65 | |
| Kere ju (%) | Ta | 0.01 | 0.2 |
| Al | 1.2 | 5 | |
| Si | 1.1 | 3 | |
| C | 0.02 | 0.2 | |
| S | 0.02 | 0.1 | |
| P | 0.01 | 0.2 | |
Iwe-ẹri:
Ohun ti a le pese:
