Carrying Roller, Troughing Roller, Idler Roller manufacturer / supplier in China, offering JIS Belt Conveyor Steel Impact /Trough/Troughing/Carrier/Carrying/Return Guide Idler Roller 51, Belt Conveyor Self Aligning Troughing/Trough/Carry/Carrying/Carrier Return Idler Roller for Cement 200, Idler/Roller Station for Conveyor Roller Lx and so on.