Carbon Steel Product, Steel Rebar, Galvanized Steel Products manufacturer / supplier in China, offering S275jr 1X1 Inch 20mm 30mm Hot-DIP Galvanized Mild Steel Square Rectangular Tube Gi Hollow Section Steel Tube, High Quality Custom 5mm 5.5mm 6mm 6.5mm 7.5mm Thickness Ss400 Ss490 Ss540 Ck67 1008 Black Cold-Rolled Low Carbon Hot Rolled Steel Coil, A53 Q235B Hot Rolled Ms Carbon Steel Pipe ASME B36.10m Carbon Steel Pipes for Oil and Fluid Applications and so on.