... ,309S,310,310S,430,409specificationthickness0.3mm—20mmwidth120mm—2000mmProduction technologyHot rolled ,cold rolledSurface treatment2B,BA,8K,No.1,Etching,Hairline,Satin,Mirror ... ,310,310S,430,409specificationRound Square rectangle Stainless Steel Seamless Pipes & Tubes