... .3-75mm Finish: POLISH,ACID,HL,200# polishing, 400 # polished SS 304 seanless tube Stainless steel is a production which not ... .5mm-406mmSquare10*10mm-150*150mmrectangle10*20mm-100*200mmshock15mm-72mmSurface treatmentPolishing (180#,220#,240#,320#400#,600#), Hairline,aid pickling and so ... ,316L,316LN,317,317L,309,309S,310,310S,430,409specificationRoundSquarerectangle SS 304 seanless tube