CAF2 : 75 - 80 % SIO2 : 10 % max AL2O3 : 3 % max FE2O3 : 4 % max CAC3 : 3 % max S 0.5 % max Size : 10-50mm (90 % min) Packing: one MT big bags I want to receive: Product Spec . Price Payment . Sample Needed . Delivery Info . Product Catalog . Minimum Order . Inventory Info . Packing Info .