셀렌 ST 1

셀렌 CT 0 셀렌 ST 1 셀렌 CT 2

СТ 1
CT 1
ST 1
Se 1

ГОСТ В51 ГОСТ 10298-79

S Fe Cu As Al Pb Se Te Hg
ГОСТ 10298-79 ≤0.02 ≤0.01 ≤0.005 ≤0.005 ≤0.005 ≤0.005 ≥99 ≤0.1 ≤0.005

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