... years.4. Short construction periodHighly mechanized construction of spiral Sand silos on site, short construction period. The seven ... (conic concrete hopper + conic steel hopper) Applications:Steel Sand Silo for grain project storage and turnover (feedstuff,Oil,alcohol ... It can keep warm,VEN Ventilated and suffocating.Steel Sand Silo for port logistics storage and turnover. About MuyangMachineryshops ...