... . Free acid: 5% Max 4. Size (1-4mm): 90% Min Phosphate fertilizer :(TSP)Detailed Specifications :ItemsRangeTotal P2O542 - 46 %Available (P2O5)40 - 44 ... Factory :Established in 1998.Specializing in fertilizer production and export business.Main products : Prilled Urea, Granular Urea, TSP, DAP, MAP, SOA, NPK, etc ...