... 10mmPolishing length: more than 700mmSuitable for square shaped aparts of aliminium,copper,stainless steel, iron material.The machine can work ... on aluminium,copper, stainless steel,iron parts for sanding,polishing, and wiredrawing processing. Main ParameterModelJZ-P2003 ... polishing problems ? please feel free to contact us for more information. Thanks Square pipe polishing machine