Idler Roller Bearing Seat 1.Bearing Stand High Precision 2.Four Production ... Service Aluminium, Copper , Steel, Stainless Steel(SUS), Iron, Nylon Chilled cast iron, Nodular cast iron(ductile iron), Alloyed cast ironExporting CountryNorthern Europe, Eastern Europe, North ... contract signed customers can visit our company and ability. conveyor roller bearing housing