Black round steel pipes Details Thickness range: 0.45-2.0mm Outer diameter: 9-90mm Length: 4-12m Material: q235, q195, q345, a53(a, b), a500 Standard: astm a53-2007, gb/t 3091-2008 Technology: erw We have products such as steel pipe, pre-galvanized steel square pipes, black square steel pipes, black round steel pipes, hot dipped galvanized steel square pipes, pre-galvanized steel round pipes, hot dipped galvanized steel round pipes and so on.
