Potassium Humate, Calcium Ammonium Nitrate, Urea manufacturer / supplier in China, offering CAN N15.5% Fertilizer Nitric Acid Ammonium Calcium, Trace Liquid Fertilizer Calcium Magnesium Zinc Boron and Iron, Strong Ability to Form Durable Resins When Combined with Formaldehyde Melamine Indusgrade and so on.