... meeted Zinc plated rollersRoller diameter can be 25mm, 38mm, 50mm, 60mm, 76mm, 89mm,Free steel roller,Tapered steel roller,Grooved steel roller,Sprocket steel roller,Drive ... ,202.5,3.080-1500Φ8920,253.0,4.080-1500Φ10825,303.5,4.0100-1500 Coat rubber,Carbon steel ,Stainless ... steel , Φ12730,354.0,4.5200-1500Φ15235,404.0,5.0200-1500Φ15940,455 ...