1.moisture:2%max 2.size:2-4mm, 90%min 3.color: white We produce all kinds of NPK compound fertilizers and the following products are very popular: Active ingredientN-P2O5-K2OAppearance40%17-8-15granular size2-4mm, 90% min40%11-6-23granular size2-4mm, 90%min40%28-12-0granular size2-4mm, 90% min40%20-20-0granular size2-4mm, 90%min42%16-8-18granular size2-4mm, 90%min43%16-6-21granular size2-4mm, 90% ...