304 seamless tube seamless / weled tube OD:6mm-750mm T:0.3-75mm Finish: POLISH,ACID,HL,200# polishing, 400 # polished 304 seamless tubeStainless ... ,Bead Blast,EmbossedThe stainless steel pipestandardASTM,GBmaterial201,202,301,304,316,316L,316LN,317,317L,309,309S,310,310S, ... treatmentPolishing or notThe stainless steel barstandardASTM,GBmaterial201,202,301,304,316,316L,316LN,317,317L,309,309S,310,310S, ...