Carbon Steel Product, Steel Rebar, Galvanized Steel Products manufacturer / supplier in China, offering Factory High Strength Q355b Carbon Steel Coil 4.5mm 2000mm Hot Rolled Steel Coil, Higher Quality Ss400 Q235 Q355 Thickness 3.0mm Width 1800mm Carbon Steel Coil for Building Material, for Sale Customized Structural Steel 6m 12m 18m Q235B Q355b ASTM A572 Heb180 Carbon Steel H-Beam and so on.