The product can set deoxidation, purify molten steel and removing inclusions into one and has partial desulfurization without any other elements. And manganese, silicon, carbon can also be increased to meet customers' needs. The Inner Mongolia baotou steel and wuhu steel mills has tried and give high praise to the effect of stability, reliability, internal external quality of steel. This product not only has all function of other deoxidize agent, but also can be used in molten steel refinement and secondary deep deoxidation and the effect is obvious. It can take in place of traditional high cost calcium carbide to deoxidize.