... 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 ... Certificate EN10204/3.1B4) O.D.: 20-508mm5) W.T.:1.8-100mm6) Length: the max is 12m or as customers ... types, we can also meet your needs. low price carbon steel pipe making machine