... 2. Ca30Si55 3. Size: 0-2mm. 10-100mm, etc. Ferro Silicon Calcium CopmpositionCASIALCSpecifation25%MIN55~65%2.0%MAX1.0%MAX28%MIN55~65% ... , 1-3MM, (90% Min.) Dear sirs,We produce and supply Ferro Silicon Calcium as following specification:Ca:28-30%, Si:55-65%, Al ...