... .4. Easy to understand . The bolted silo is equipped with relevant accessories, such as: conveyor, ventilation, drying and monitoring ... 30 years.3.Installation1. The Silo BodyInclude the wall plate, column, manhole, roof ladders and so on. (1) The ... Natural ventilation vents,Suction Fan,Ventilation Blower,Ventilation channel with net sheets;Ventilation System includes Natural ventilation vents,Suction ...