carbon steel pipe making machine 10#, 20#, 45#, 16Mn, Q235, Q345, Q195 O.D.: 20-508mm W.T.:1.8-100mm or more precision ... carbon steel pipe making machine1) Material: 10#, 20#, 45#, 16Mn, Q235, Q345, Q1952) Standards: ASTM A53, ASTM A106, API ... as per clients' requirements 10) Delivery time: Within about 30-45 days 11)Application: apply to petroleum, chemical industry, electric power ...