... customerized Production Capacity 11000 tons per month Product Range: Seamless steel tubes/ pipes, Cold drawn steel tubes/ pipes, API SPEC 5L pipes, MATERIAL Carbon Steel ... Tubes/Pipes ST 37, ASTM A106 Gr B; A53, A210; API ... , X52, X56, X60, X65, X70, X80 A106 Gr. B Steel Seamless Pipe / Carbon Steel Pipe