... 3.good after sale service 4.diferent kinds of dryer machin slag dryer machineslag dryer is widely used in building materials, metallurgy, ... small footprint, high degree of mechanization.Features: (1) ore dryer drying process advanced, high temperature and rapid drying process, heat ... variable shaft speed adjustable. (6) of the upper ore dryer body set higher than the reflux layer of wet material, the ...