セレンCT 2

СТ 2
CT 2
ST 2
Se 2

ГОСТ В51 ГОСТ 10298-79

S Fe Cu As Al Pb Se Te Hg
ГОСТ 10298-79 ≤0.5 ≤0.5 ≤0.05 ≤0.05 ≤0.05 ≤0.05 ≥97.5 ≤0.5 ≤0.05