... . Seamless stainless steel pipe. Dia: 2mm-830mmStandard: ASTM A269,A213,A511,A789,A790,A335Austenite: 301,310S, 304, 304L,316, 316L,316Ti,317,317L,321,347H ... ,904HDuplex:S31803, S32205, S31500We could supply pipe with your special request for example roughness ...