316L stainless steel tube seamless weled OD:6mm-750mm T:0.3-75mm Finish: ... POLISH,ACID,HL,200# polishing, 400 # polishing 316L stainless steel tube Stainless steel is a production which not easy rust,acid ... rolledSurface treatmentCopper coatedGalvanizedothersortingStructural pipe, fluid pipe, boiler pipe, oil pipe, gas pipe, API pipe, alloy steel pipe, carbon steel pipe and ...