编号 | CaO | SiO2 | Na2O (Li2O) | B2O3 |
1 | 42.5 | 42.5 | 15 | 0 |
2 | 40 | 40 | 15 | 5 |
3 | 37.5 | 37.5 | 15 | 10 |
4 | 35 | 35 | 15 | 15 |