1.Compared with Si-AI-Fe ,Si-AI-Ba-Fe, this deoxidizer with lower price,easy to use, Good deoxidation effect,and stable performance. 2.Si-Fe ,Mn-Fe yield rate is high ,Si-Fe yield rate rise by 10-15%,and effect is stable . 3.Improve the molten steel quality. 4.Suitable for different steelify way as deoxidizer.especially for converter deoxidation. 5.Can replace the traditional deoxidizer Si-AI-Ba,used for ladle slag with strong deoxidation and desulfuration effect ;Can better improve the steel liquidity and raise the continuous casting time.reduce the gas content of molten steel,lower the steel inclusions. 6.The Ca,Al in the complex deoxidizer can change the oxides into the deoxidizing material with low melting point which easy floating,purified the molten steel. 7.Easy to use, improve the metallurgical recovery ratio.lower the consumption of metallurgical, effectively help reduce raw material cost,improve the steel quality.