cement screw conveyors featurer:durable,easy maintance performance:high cost performance benifit:small bore-high efficiency Application of Screw Conveyor:The screw conveyor is suitable for transporting all kinds of powder granular materials and small block, such as coal, gravel, lump coal and sand, cement, cereal, etc, but not suitable for conveying easy-deteriorated, stickiness, and easy-forming ...