1.grade:553,441,2202,3303,411,421; 2.Packing:1000kg/bag 3.high quality with competitive price Apperance:Dark grayPhysical Property: High melting point and resistivity, good heat resistance and good anti-oxidation effect.Particle Size: (10-100)mm.Composition Analysis GardeCompositionSi Content(%)Impurities(%)FeAlCaPLevel 1515>99.6%≤0.15-≤0.015≤0.004%Level 2202>99.5%≤0.2≤0.2≤0.02≤0.004%Level 2203> ...