化学成份:Sn≥99.999% Al≤0.5ppm,Ca≤0.5ppm,Cu≤0.5ppmFe≤0.5ppm,Mg≤0.5ppm,Ni≤0.5ppmZn≤0.5ppm,Sb≤0.5ppm,Bi≤0.5ppmAs≤1ppm, Pb≤1.2ppm, Au≤0.1ppmCo≤0.1ppm In≤0.2ppm杂质总和≤10ppm380元/公斤