... Mg, Cu and Fe; it is a fine agent for water treatment. Specifications:FCC-IV standard: HG/T 2519-2007 Uses:Used ... , dyeing, petroleum, chemistry, metallurgy and construction materials etc. as water softener, flotation selecting agent, disperser and high temperature adhesive; In ... warehouse instead of in the open air, kept away from water, moisture and sunlight during transport, handled with care, so ...