... ash,sand,coal,chemical fertilizer Application of cement screw conveyor:LS series cement screw conveyor has passed ISO9001:2008 standard. It ... , food industry. etc, suitable for conveying powder, granular, small block materials, such as cement, grain, chemical fertilizer, ash, sand, ... above is only as ref., we have also GX series screw conveyor and others. Therefore,pls send us your requirments and ...