GX Screw Conveyor equipment for grain 1,Simple structure and Small ... chemical industry, light industry, food industry.etc, suitable for conveying powder, granular, small block materials, such as ... grain, chemical fertilizer, ash, sand, not suitable for conveying perishable, viscous, easy caking materials.It’s working ... is -20 to 40 °C,and the temperature of materials transported is -20 to 80 °C.GX ...