... 1. Standard: GB, ASTM, JIS, DIN, EN, AISI 2. Material: 304, 304L, 316, 316L, etc Stainless steel welded tube / pipe1 ... . Standard: GB, ASTM, JIS, DIN, EN, AISI2. Material: 304 ... woodedn/plywood case or according to customer request. Stainless Steel Industrial Piping(JIS G 3459) 1. Chemical Composition MaterialChemical Composition ...