Our company produce high quality Ferrous Sulphate Mono / Hept, Zinc Sulphate mono / hept, Manganese Sulphate mono, etc. Product:Ferroussulphatemonohydrate Usage:Fertilizer,rawmaterialofotherindustrial Spec.: FeSO4.H2O91%minFe30%minPb10ppmmaxCd5ppmmaxAs5ppmmax Packing: 25kgsnetbag Quantity: 22mt/20'FCL Pls feel free to contact us if have any questions.