Seamless, ERW, SSAW, API LINE PIPE Standards:API 5L, Grades: A, B, X42, X46,X52, X56, ... API LINE PIPE: O.D.89-820mm, W.T. 3- 16mm. API 5L, GrB, X42, X46,X52, X56,X60 Seamless, ERW, SSAW ... , black coating, in bundles or as per customers' requirements API pipe Seamless, ERW, SSAW,