... 3. Free acid: 5.5% Max Single super phosphate fertilizer(SSP)Detailed Specifications :ItemsRangeTotal P2O520 % MinWater-soluble phosphate (P2O5 ... 4mm)90 % PassAbout Factory :Established in 1998.Specializing in fertilizer production and export business.Main products : Prilled Urea, Granular ... Urea, TSP, DAP, MAP, SOA, NPK, etc.More than 10,000 square meters ...