1.ISO9001:2008. 2.The silo body uses Galvanizing steel. 3.Low cost and long life. 4.Capacity depends on customers' needs. The silo can be used to store grain, cereals, seeds, feed and other granular and powder, etc. LongChang steel silo construction adopts screw seal and welding structure. It can store many materials, such as granular, powder, liquid,etc, and widely be used in feed, grain, oil, ...