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純度(Purity)≥99%, 銅(Cu) ≥25%, 鉛(Pb) <30ppm, 鎘(Cd) <10ppm,
砷(As) <12ppm, 汞(Hg)<0.5ppm, 戴奧辛(Dioxins)< 1.0ng/kg (ppt)