鉛 C3C

С3С
C3C
S3S
Pb3Pb

ГОСТ В51 ГОСТ 3778-98

Fe Cu As Zn Sn Sb Pb Bi Ag
ГОСТ 3778-98 ≤0.01 ≤0.09 ≤0.05 ≤0.07 ≤0.1 ≤0.2 ≥99.5 ≤0.15 ≤0.01

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