Frusilis

Ferrosilicon is a combination of silicon and iron, which is sold in the market with a purity of 70 and 90%. In addition to iron, about 2 to 4 percent of impurities such as chromium, aluminum, carbon, manganese, calcium, titanium, and sulfur are also present in the composition of ferrosilis, each of which has a significant effect on the final product.

Microsilica