We are a Professional Magneisum Sulphate Manufacturer in China, we want to have long time commercial intercourse with you. We Supply Food grade magnesium sulphate heptahydrate for sale. We are a professional magnesium sulphate manufacturer, we have 0.1-1mm. 2-4mm. 4-6mm magnesium sulphate heptahydrate, and anhydrate magnesium sulphate, and magnesium sulphate monohydrate
