BODA steel silos with flat bottom or hopper bottom are professionally in storage of grain, corn, wheat, rice, ... depot, flour, starch, oil, feed, alcohol, wine, seed, port, farm, plastic pellet, cement, coal ash, chemistry and so on, which are ... :simple structure,large capacity,many ways for flowing,easy maintenance.Hopper-bottom storge bins: the type is free-flow discharging with ...