... kind of continuous conveying equipment, better than belt conveyors and screw conveyors. Tube chain conveyor is a kind of continuous conveying ... conveying systemIndustry of Fine Chemicals: Dye, paints, coating, carbon black, titanium pigment, ferric oxide, ceramics powder, coarse whiting, fine particle calcium ... , grain, milk powder, food additive and so on. KRD Flexible Screw Lift Elevator