Permanent Steel manufacturer of Electric Resistance Welded Pipe and supply worldwide. It is used For ERW Line Pipe, Casing, and Structure Tube. Its surface is Lightly oiled, Hot dip galvanized, and Electro galvanized. It comes with Plastic plugs on both ends, two tags on each bundle, and wrapped in waterproof paper. For more details call us at 86-731-88787784.