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Total
MgO
(%)
min
Water
Soluble
MgO
(%)
min
Water
Soluble
B2O3(%)
min
Moisture
(%)
max
PH
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A 30 17 6 5 10??1 60
80
100
120
200
325
1-4
2-4
2-5
2-6
3-5
B C-MgO(%) min
30
C-B2O3 (%)
min
3

Moisture
(%)Max
6
 
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