... belt scale, Weigher Disc mixer, chain crusher, disc granulator,drum screen,drum granulator,rotary dryer,cooling machine,coating machine,automatic packing machine.NPK ... cold, facilitate bagging save, and transportation,with the cooling machine for cooling;8. Level 2 classificationClassify the cooling particles,unqualified ... the automation. 2012The Whole Line NPK Fertilizer Equipments With ISO9001:2008