... Blast,Embossed The stainless steel pipestandardASTM,GBmaterial201,202,301,304,316,316L,316LN,317,317L,309,309S,310,310S,430,409specificationWall thickness0.3mm ... steel pipeWelded steel pipeSurface treatmentPolishing or not The stainless steel barstandardASTM,GBmaterial201,202,301,304,316,316L,316LN,317,317L,309,309S,310,310S,430 ...