... the products as per buyers' requirements grade(ferro silicon magnesium)compositions/%REMgCamaxSiMnTiFe maxFeSiMg6RE10.5~2.05.0 ... more than 2,000 tons of silicon-manganese alloy, aluminum ferromanganese, ferro silicon magnesium,iron sulfide, barium, and other ... special alloy Alumina 10,000 tons; drainage of premium burden, and other refractory ...