Specs: CaO : 25.0-45.0%　 MgO : 46.0-68.0% SiO2 : 1.45-2.80% Al2O3: 0.45-1.20% L.O.I. : 0.43-1.95% Quantity: 1500MTS-2000MTS/Month Size & Packing: At Buyers'Options Origin: Liaoning Province China