1)environmental 2)Efficiency, energy saving 3)better drying ... , unloading device, flat belt conveyor, pneumatic gate, thermostats, air compressors, hot air systems, cooling systems, dust removal system, computer control system, ... sandwich panelSingle color steelImpact on the environmentNo air pollutionSevere air pollutionOperatorClass Single 1 workerClass Single 4 workers corn dryer machineJL- ...