... , EN, AISI 2. Material: 304, 304L, 316, 316L, etc Stainless steel welded tube / pipe1. Standard: GB, ASTM, JIS, DIN, EN ... to customer request. Stainless Steel Industrial Piping(JIS G 3459) 1. Chemical Composition MaterialChemical Composition %JIS G 3459CSiMnPSNiCrMoSUS 304≤0.08 ... 5±0.60≥76.3±1%DWe are sincerely looking forword to cooperate with you. Stainless Steel Industrial Piping(JIS G 3459)