NameCold roCar Safety lled / Hot rolled ERW black hollow section carbon rectangular steel pipeMaterialQ195/Q235/Q345/20#Surface treatmentGalvanized/oiled etcWall thicknessGreater or equal to 0.3mmPackagePacking in bundles with steel belt or customization Goldensun Steel was established in 2007. Goldensun mainly engaged in all kinds of Steel Pipes, Bars, Beams, Plates and Sheets, GalvaniSorting Machine zed and Galvalume Coils, PPGI, Corrugated Sheets, Pre-paint Corrugated Sheets, all kinds Wires, Meshes, Fencing and Nails Now Goldensun has a professional team of market development, quality inspection, post-service. After long-term cooperTimer & Counter ation and communication with many customers, Goldensun won a good reputation and customer trust. Now cooperation customers are from Africa, Mid East, South America, Central America, Southeast Asia, Eastern Asia, Oceania, Western Europe etc.Black Annealed Steel Pipeblack square steel pipeblack rectangle steel pipecarbon steel pipe