 


| 牌號 Labels | 
 | 
 | 
 | 
 | 
 | 
 | 
| MgO(min) | Al?O?(min) | SiO?(max) | Fe?O?(max) | B.D(g/cm3)(min) | LoI(max) | |
| MA-70 | 25 | 70 | 0.5 | 0.5 | 3.3 | 0.1 | 
| MA-66 | 30 | 66 | 2 | 1.5 | 3.3 | 0.1 |