1.stainless and seamless steel pipe 2.for industrial 3.Section Shape: Round 4.Standard: ASTM / ASME, GB, DIN, JIS, T14975 stainless and seamless steel pipeGRADE : 200 (Ni : 0.8%), 201B (Ni : 3%), 201H (Ni : 5%) 301 (Ni : 6%), 304, TP304, TP304L/304L, 321, TP321, 316, TP316L, 316L, 316Ti 317, 317L, 309S, 310S(2520), 347, Duplex 2205, Duplex 2207, etc.SPECIFICATION: O.D: 1/4" - 32" (inch) (6-830 mm ...