Conveyor Roller, Belt Conveyor, Sprocket manufacturer / supplier in China, offering Modular Design Single/Double Row Plastic Polymer Sprocket Rollers for Customizable Conveyor Solutions, Internal Thread Polymer Single/Double Sprocket Roller Provide Quite Running for Cargo Conveying, Polymer Single/Double Sprocket Roller with Polypropylene End Cap Suitable for Conveyed Weight Within 150kgs and so on.