... 5.ISO and SGS certificates 1.309S round stainless steel bar2.Specifications of goods DescriptionStainless steel round barGradeAISI201,201,304,304L,309S,310S ... , stain finish, etcApplicationapply to Decoration, Staircase, Railing ,petroleum, chemical industry, electric power, boiler, beam, Bridges, etcproduction procedureraw elements(C,Fe,Ni ...