South Africa 325mesh 46%min Cr2O3 Chromite Flour Material
South Africa 325mesh 46%min Cr2O3 Chromite Flour Material Chromite sand ,it’s main chemical composition is Cr2O3(chromic oxide), This kind of sand heating volume is stable , High thermal conductivity , sand molten metal contact , not only has a good alkali slag resistance , not with iron oxide and other chemical reaction , and itself