thick wall seamless pipe 1). OD:2''-12'',WT:SCH20-SCH160 2). Material:ASTM A106/A53/API 5L Gr.B,ST52/37/44 SIZE AND DESCRIPTION: OD and WT2''-12'' and SCH10-SCH160StandardAPI 5L, API 5CT, DIN1629/2448, DIN17175, ASTM A53, ASTM A106B, ASTM A179, ASTM A210, ASTMA335, ASTMA519 and so on.Superficial TreatmentBlack paintingTechniqueCold drawn and hot rolledApplicationfluid pipe, oil pipe FLAGSHIP ...