... industrial refractories, powder metallurgy industry,polysilicon,silicon target material,silicon nitride,silicon carbon bar and semi-conductors ... RangeParticle Size74-120um our product: Silicon powderSpecificationSi ≥Chemical Composition %Impurity, ≤FeAlCaChemical silicon powderSi-(24-120 mesh ... 0001Low-grade silicon powder200 mesh97≤3.0% brandChemical Composition %Si ≥Impurity, ≤FeAlCaSi-220299.50.20.20 ...