... The more silicon, the lower proportion. According to the content of the silicon, it can be divided into industrial ferrosilicon (Si ... does not exceed 1.5 percent) ,and the ferrosilicon of different contents of silicon ,95%, 75%, 65% and 45%, etc. Property ... , and purification, so as to enhance the mechanical properties of materials and the use of effects. Product ParametersPlate Si FeSi75A74.0—80.0 ...