... .3-75mm Finish: POLISH,ACID,HL,200# polishing, 400 # polished SS 304 seanless tube Stainless steel is a production which not ... -72mmSurface treatmentPolishing (180#,220#,240#,320#400#,600#), Hairline,aid pickling and so onProduction technologySeamless steel pipeWelded steel pipeSurface treatmentPolishing or ...