Ferro Silico Magnesium% Mg % Si % Ca % TRE % AlFeSiMg5.50 –6.50 43.0 –48.0 0.80 – 1.20 0.80 – 1.20 0.40-0.80 Size: 1-3, 2-12, 3-12, mmPacking: 25 kg bags / 1-ton big bags