Conveyor Roller, HDPE Roller, Conveyor Drum manufacturer / supplier in China, offering Alimak Compatible Parts & Alimak Replacement Parts PU Nylon Guide Track Rollers Wheel on Construction Hoist, 82 mm Nylon Roller Wheel Plastic Bearing CNC Guiding Wheel on Construction Hoist, Construction Lift, Construction Elevator, Customized Food Grade Teflon PTFE PU Polyurethane Rubber Nylon Coating Conveyor Roller and so on.