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