hot rolled steel flat bar,flat Grade: SS400, ST37-2, A36, S235JRG1, Q235, ... : 20mm-800mmLength: 6meter, 9meter, 12meterDescriptions Flat bar is a kind of steel product bearing rectangle ... boilers making ,etcFounded in 2000, we are a leading steel enterprise in China, located in Fengrun District, Tangshan ... steel, channel, I-beam, H-beam, deformed bar, round bar, steel pipe, steel plate and more. Under ...