... %20-10-10granular size2-4mm, 90%min42%16-8-18granular size2-4mm, 90%min43%16-6-21granular size2-4mm, 90%min45%15 ... size2-4mm, 90%min45%14-16-15granular size2-4mm, 90%min46%16-8-22granular size2-4mm, 90%min48%16-16-16granular size2-4mm, 90 ... : 86-532-8610 7271MOBILE: 86-186 7896 9301Skype: yueyue20108 NPK 16-8-18