Diammonium Phosphate, 46% Urea, NPK Compound Fertilizer manufacturer / supplier in China, offering Potassium Carbonate Potash Fertilizer 99.5%Min K2co3 Powder CAS No: 584-08-7, 99% Anhydrous K2co3 Potassium Carbonate for Industrial, K2co3 98% Potassium Carbonate for Inorganic Industry and so on.