carbon steel pipe making machine 10#, 20#, 45#, 16Mn, Q235, Q345, Q195 O. ... max is 12m or as customers' required7) Suitable for high pressure, anti-corrosion and long distance conveyance of gas ... : apply to petroleum, chemical industry, electric power, boiler, high temperature resistant, low temperature resistant, etc..12) Processing Technology: ... your needs. low price carbon steel pipe making machine