Ventilation and Oxygen Supply - Manure composting is an important factor in the lack of air and oxygen. Powder Rotary Dryer, Mushroom Compost Turner, Automatic Starch Packaging Machine, Silica Sand Vibrating Screener,Animal Manure Pellet Granulator. Mechanical composter The product will supply to all over the world, such as Europe, America, Australia,Ethiopia, Poland,Amman, Mecca.The organic fertilizer granulator is suitable for direct granulation of organic fertilizer after fermentation, omitting the drying process and greatly reducing the manufacturing cost. Therefore, the organic fertilizer granulator is favored by the majority of users.