3 2
Cr2O3
4 1
SiH4
1 2
Na2O
Al2O3
H2O
Cu2O
2 2
ZnO
1 1
HF
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3 2
Cr2O3
4 1
SiH4
1 2
Na2O
3 2
Al2O3
1 2
H2O
1 2
Cu2O
2 2
ZnO
1 1
HF