This series of products is categorized by strength grades into B, X42, X46, X52, X56, X60, X65, X70, X80, and X90 steel grades. According to the pipe welding process, it can be divided into Longitudinal Submerged Arc Welded Pipe (LSAW), Electric Resistance Welded Pipe (ERW), and Spiral Submerged Arc Welded Pipe (SSAW). Based on the medium and environment of use, it includes pipeline steel for oil transmission, natural gas transmission, acidic environment service, and marine environment service. In addition to the oil and gas industry, this type of pipeline steel is widely used for pressurized fluid transmission pipelines for water, chemical materials, mineral slurry, and more. Specific technical standards for supply vary depending on the user's pipe manufacturing process and application.