Strailed steel pipes are a kind of welding steel pipe. Refers to the steel pipes of the vertical parallel of the weld and the steel pipe. After the hot -rolled steel roll meridian is formed, the steel roll is transformed into cylindrical shape. The arc combustion effect of the high -frequency current skin and the neighboring effect or the neighboring effect or the neighboring effect or the arc under the waee layer can be welded, so that the edge of the pipe billet is heated and melted, melted, and eventually cooled. Yes. Petroleum, metallurgy, construction, coal mines, ports, machinery and other industries are widely used in industries such as oil and gas transportation, low -pressure water and gas transportation, mine fluid transportation, band conveyor, and automotive transmission shafts.
