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Specification¡¡§oo ,,, Kno3,% ,99.7min, Misture,%,0.05max Chloride cl ppm,100max Insolubles ppm,100max So4,Ppm,100max Mg,Ppm,5max Na,Ppm,100max Fe,Ppm,5max Size: 1-2mm/ 2-4mm Packing: 25kg, 50kg, 500kg, 1000kg, 1200kg bags.