... 304L,316,316L,321,316,316L 3.Standard:AISI,DIN,JIS,GB,EN 4.Factory direct 5.Best ... ,316L,321,321H,316,316L3.Seamless/welding4.Approval:AISI,DIN,JIS,GB5.Application: petroleum,Machine-made industry, chemical ... products,etc 1.NameStainless steel sanitary tube2.Standard:GB14976-2002, GB13296-2007, JIS, AISI, DIN,3.Thickness:0.3- ... and best service! Mirror/Bright Annealed Sanitary Stainless Steel Tube