... kind of continuous conveying equipment, better than belt conveyors and screw conveyors. Tube chain conveyor is a kind of continuous conveying ... phosphate, alumina powder and so onBuilding Material: Cement, clay, yellow sand, quartz sand, clay powder, silica, limestone flour, dolomite fines, Wood chips ... , grain, milk powder, food additive and so on. KRD Flexible Screw Lift Elevator