... , easy to be installed , dismantled and moved, safe operation!Applicable materials:Loose materials such as powder, granular andsmall piece material , which ... clay powder, pulverized coal, cement, sand, grain, smallpiece of coal , cobble, and cast iron filings, etc.While it is not applicable for materials ... compounding machine in concrete mixing plant. LSY219 Spiral Screw Conveyor for powder and gravel