... Stainless Steel Bar Instruction:Shape:Round /square/flat/ angle/hexagonalSurface:Bright,blackFinish: Cold Drawn & PolishingStandard:GB,AISI,JIS ,etcGrade:300series ... ,400seriesDIA: 5mm - 1000mmMaterialGrade:304,304L,309s,310s,316,316L,316Ti,317,317L,321,321H,410s, ect. Stainless Steel ... high quality and competitive price. Our stainless steel sheet has beautiful surface, corrosion resistance, ...