Chemical composition in % of the material BKА ( BKА, БКА ) .
Al
Pb
Ca
Mg
Sb
Bi
Na
Impurity
0.05 - 0.2
97 - 98.3
0.95 - 1.15
max 0.2
max 0.25
max 0.1
0.7 - 0.9
other 0.3
Comment: Pb is a basis; the percentage of Pb is given approximately.
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