| Marca registrada | La densidad de Bull. | La resistividad eléctrica | Fuerza de flexión | Fuerza compresiva | Ash |
| G/cm³ | ΜΩ · m | Mpa | Mpa | % | |
| OZ-2 | ≥1.60 | ≤11.5 | ≥ 6.0 | ≥ 18,0 | ≤0.3 |
| OZ-2-1 | ≥1.70 | ≤8.5 | ≥ 9.0 | ≥ 30,0 | ≤0.3 |
| OZ-8 | ≥1.70 | ≤8.5 | ≥ 10,0 | ≥ 24,0 | ≤0.3 |
| OZ-8-2 | ≥1.72 | ≤8.0 | ≥ 12,0 | ≥ 31,0 | ≤0.3 |
| OZ-8-3 | ≥1.72 | ≤9.0 | ≥ 14,5 | ≥ 32,0 | ≤0.2 |
| OZ G-1 | ≥1.68 | ≤14 | ≥ 25,0 | ≥ 50,0 | ≤0,15 |
| OZ G-2 | ≥1.78 | ≤14 | ≥ 40,0 | ≥ 60,0 | ≤0.1 |
| OZ-G-3 | ≥1.85 | ≤13 | ≥ 45,0 | ≥ 65,0 | ≤0,05 |
| OZ-D1 | 1.80~1.85 | ≤15 | ≥ 40,0 | ≥ 85,0 | ≤0,03 |