... ,straw,oil palm fiber 3.drum speed adjustable Biomass drum rotary dryer:We are direct manufacturer for Pellet Machine , Hammer ... First, from the material form, the centrifuge cake dewatering, filter press cake; the free flow of powder, granule, flake, fiber ... into direct, indirect heating, ventilation tube heating, indirect heating steam pipe, composite structures and other forms of heating.Fourth, from ...