... mill, rollers of smooth rolling transportation.Serial of MC Nylon smooth roller(big dimension)Wind power electricity:vane, bearingNucleus ... :Slide bearings ,shift tube, bracket of telescopePharmaceutical equipment:MC nylon never corrosive, rust ,stick-slip, suitable for making gears ... and environment protection:Big wheels of waste water pool,scrapers, grid chain and harrow of feculence filter, dryer ...