... 3.Material can be powder, sawdust ,straw, rice husk sawdust Drying machine: Product Introduction:Hot-air dryer ... is small. This dryer is applicable to starch, rice flour, food, medicine, chemical industries drying powdery, ... hot air source is from oil burner, gas furnace, coal stove, steam heat exchanger.Technical Parameters: Model ... drying machine Sawdust drying machine rice husk drying machine