... good quality and competitive price 2.Chemical Composition: Si,Fe, Al ,Ca 3. Timely delivery Silicon Metal LoadingIndustrial silicon ... polymer material. Specifications: Specification Chemical Composition(%)Si%(Min)Fe%(Max)Al%(Max)Ca%(Max)Silicon metal 1101990.10 ... , such as Ferro Silicon, Silicon Carbide, Silico Manganese, Rare-earth Ferro Silicon Alloy, Ferro Silicon Magnesium Alloy, quality nodulizing ...