... :2008 High Quality Industry Grade Ferrous Sulphate Heptahydrate Ferrous Sulphate Heptahydrate Used as fertilizer, industrial flocculant ... First hand goods. ISO,SGS,COA,MS.Ferrous Sulphate HeptahydrateProduct Identification Product Name: Ferrous SulphateSynonyms: Iron ... us, you will benefit from prices, quality, services, and convenient transportation. Sewage Treatment Ferrous Sulphate Heptahydrate