High quality Zinc Sulphate powder 1.Fertilizer Grade 2.white Granular 3. ... Manufacturer Basic Properties: Colorless or white crystalline, particle or powder,Without odour. Astringent taste. In the dry air weathering ... kind of supplement crops trace elements of the commonly used zinc fertilizer fertilizer, can do basal, hairy, fat, ... : within 15 days after confirmation High quality Zinc Sulphate powder