Supplier: Copper sulphate : powder and crystal. ( 24% ), copper sulphate : powder 24.7%. zinc sulphate : hepta hydrate 21%, zinc sulphate mono : 24% to 33%. manganese sulphate : 31%. ferrous sulphate : hepta and dried 30%. edta : zinc , copper , ferrous, manganese, calcium, magnesium. ammonium sulphate. magnesium sulphate. magnesium oxide. zinc ash.
