Potassium Humate, Calcium Ammonium Nitrate, Urea manufacturer / supplier in China, offering Natural and Sustainable Pigment and Ink Use Good Quality Bone Charcoal, Widely Used in Horticulture, Greenhouse Cultivation, and Fertigation Systems Nitrate Tetrahydrate, Indus Used in Molding Compounds, Laminates, and Surface Coatings Melamine and so on.