... bearing steel, heat-resistant steel and electrical silicon steel. Ferro silicon is often used as reducing agent in iron ... quality and strong production capability! Ferro silicon lump size:10-50mm,50-100mm Ferro silicon package: In 1mt PP woven ... right, such as Ferro Silicon, Silicon Carbide, Silico Manganese, Rare-earth Ferro Silicon Alloy, Ferro Silicon Magnesium Alloy, quality nodulizing agent ...