Conveyor Roller, Belt Conveyor, Sprocket manufacturer / supplier in China, offering Single/Dual-Groove O-Belt Conveyor Rollers for Versatile Material Handling Applications, Low-Friction Dual-Groove O-Belt Conveyor Rollers for Energy-Efficient Conveyance Systems, Long Lifespan Dual-Groove O-Belt Conveyor Drums Roller with Anti-Slip Surface for Heavy Material Handling and so on.