SS304 steel tube seamless weled OD:6mm-750mm T:0.3-75mm Finish: POLISH,ACID,HL,180# 200# 320# 400 SS304 steel tubeStainless ... *150mmrectangle10*20mm-100*200mmshock15mm-72mmSurface treatmentPolishing (180#,220#,240#,320#400#,600#), Hairline,aid pickling and so onProduction technologySeamless steel pipeWelded ... ,317,317L,309,309S,310,310S,430,409specificationRoundSquarerectangle SS304 steel tube