... can as per customer request ASME, ASTM, EN, BS, GB, DIN, JIS, etc This is about Stainless steel pipe /tube Outer Diameter6 ... we can as per customer requestStandardASME, ASTM, EN, BS, GB, DIN, JIS, etcGrade 201 301, 321, 304, 304L, 316, 316L, 309S, 310S ... fields etcNoteWe can produce other standard as the customers' requirement 304 stainless steel rectangular tube