Stainless Steel Square Pipes STANDARDS:ASTM/ASME,GB, DIN, JIS, T14975, etc. STANDARDS: ASTM / ASME, GB, DIN, JIS, T14975, etc. SPECIFICATION: O.D: 4 ... ,round pipe,rectangular pipe,embossed pipe,threaded pipe 1)Products: Stainless steel tube2)Grade: AISI 304, AISI 201, AISI 202, AISI 304L, AISI ...