成 份
|
Sio2
|
AL2O3
|
K2O
|
Na2O
|
CaO
|
MgO
|
含 量
|
69-72%
|
12-18%
|
3-4.5%
|
3-4.5%
|
0.1-0.2%
|
0.2-0.5%
|