... 1.Material:Nylon&steel for the roller 2. shaft 11mm on roller 3.Used ... Nylon for the roller.Nylon,2" , shaft 11 mm, L=118 mmNylon,2" , shaft 11 mm ... , copper, carbon steel (according to customer's requirement)Surface treatmentHot galvanized, polishing, chrome/zinc ... , welding, tapping, riveting, grindingSizeAccording to customer's desingThickiness0.5mm ~12mm, or other special availableStandardANSI. ...