... precision tube 321 seamless weled OD:6mm-750mm T:0.3-75mm Finish: POLISH,ACID,HL,200# polishing, 400 # polish precision tube ... term supply stainless steel products, including stainless steel seamless pipes,stainless steel bar and stainless steel sheet ... 310S,430,409specificationthickness0.3mm—20mmwidth120mm—2000mmProduction technologyHot rolled ,cold rolledSurface treatment2B,BA,8K,No.1,Etching,Hairline ...