... .001% maxSize (mm)0.1-12)Production property Magnesium Sulphate Heptahydrate Magnesium Sulphate, HeptahydrateMagnesium Sulphate, also known as Epsom Salt,Formula: MgSO4·7H2O, Molecular ... in 1999, our company is professional manufacturer of magnesium sulphate, ammonium sulphate ferrous sulphate, manganese sulphate, zinc sulphate. Depending on advanced equipment and high technique, we ...