... stainless steel tube Stainless steel is a production which not easy rust,acid resistance and corrosion ... coatedGalvanizedothersortingStructural pipe, fluid pipe, boiler pipe, oil pipe, gas pipe, API pipe, alloy steel pipe, carbon steel pipe and so on. Steel sheetmaterialDC01 ... steel barstandardASTM,GBmaterial201,202,301,304,316,316L,316LN,317,317L,309,309S,310,310S,430,409specificationRound Square ...