... ammonium chloride (NH4CL), ammonium sulphate ((NH4)2SO4), potassium chloride (KCL), potassium sulphate (K2SO4) and other raw materials. Through physical ... complexes. They are mainly used as the production increasing fertilizer for all kinds of crops, forest, fruits, tea ... It can be used as the substitute of low concentrated fertilizer.Urea melting spraying granulating (some pellet method) process, it ...