... reducing the pollution of the environment.Introduction of poultry dung dryer:Cow dung as an organic compound fertilizer, not only turning ... choose fertilizer for planting pollution-free green food , can also used for feeding the fish, cattle, pigs, etc.3, Drum drying ... , Less malfunction, lower maintenance cost, low power consumption.6, Widely used, uniformity is good of the products drying.7, In the ...