... -75mm Finish: POLISH,ACID,HL,200# polishing, 400 # polished 304 seamless tubeStainless steel is a production which not easy rust,acid ... company long-term supply stainless steel products, including stainless steel seamless pipes,stainless steel bar and stainless steel sheet. The ... or not The stainless steel barstandardASTM,GBmaterial201,202,301,304,316,316L,316LN,317,317L,309,309S,310,310S, ...