Sylffad Ferrig
Manylebau
| Eitem | Safonol |
| Al2O3 | ≥17% |
| Fe | ≤0.005% |
| pH (toddiant dyfrllyd 1%) | ≥3 |
Ysgrifennwch eich neges yma a'i hanfon atom ni
Manylebau
| Eitem | Safonol |
| Al2O3 | ≥17% |
| Fe | ≤0.005% |
| pH (toddiant dyfrllyd 1%) | ≥3 |