Stainless Steel Square Pipes STANDARDS:ASTM/ASME,GB, DIN, JIS, T14975, etc. STANDARDS: ASTM / ASME, GB, DIN, JIS, T14975, etc. SPECIFICATION: O.D ... 201, AISI 202, AISI 304L, AISI 316,AISI316L,AISI4303)Standard: ASTM A554, ISO9000 4)Product range:Round tube: O. D. Form 6 ...