carbon steel pipe making machine 10#, 20#, 45#, 16Mn, Q235, Q345, ... W.T.:1.8-100mm or more precision carbon steel pipe making machine1) Material: 10#, 20#, 45#, 16Mn, ... Certification: ISO9001.2000, PED, Mill Test Certificate EN10204/3.1B4) O.D.: 20-508mm5) W.T.:1. ... days 11)Application: apply to petroleum, chemical industry, electric power, boiler, high temperature resistant, low temperature resistant, ...