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Silicon slag ball Silicon slag ball is composed of metal silicon slag powder by machine pressing,Website:http://www.ferrousalloy.com, Silicon slag is a floating scum produced during the process of smelting silicon. It is a good oxidizer as it has a large number of metal silicon and other chemical element. Widely used in Molten steel deoxidized, purifying molten steel. Because of the low price and good effect, many steel factories used it instead of Ferro silicon. It is a good product of lowering cost and heightening effect.TypeChemical Composition %SiCSPH2OStrength ===Silicon slag ball50-553-