4N
1.Sb2O3 99.99%
2.Impurity Max each Pb/As/Fe/Cu/Ni/Al/Ca5ppm, Bi2.0ppm
3.Size 1-4um
4.Packing 25kgs in cardboard drum
5N
1.Sb2O3 99.999%
2.Impurity Max each Ag/Cu/Al/Ni/Pb0.5ppm, Mg/Ca/Fe1ppm
3.Size
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