... 400 # polishing 202 welded tube Stainless steel is a production which not easy rust,acid resistance and corrosion ... 2006 had developed rapidly .At present, We export our products to Spain, Germany, France, Turkey, USA, Canada, Taiwan, ... HG60,DB685,16Mn,20G,65Mn,510l,ASTMA299,ASTMA515,ASTM A 572,ASTM A 709,ASTMA302,ASTMA537,API X52,API X ... Company will offer warm-hearted service to you ! 202 welded tube