Steel Pipe, Aluminum Coil, Galvanized Steel Coil manufacturer / supplier in China, offering Q235 Grade Galvanized Carbon Steel Pipe 12m Length Cold Rolled Technique ASTM GB Standard Seamless Steel Pipes for Cutting, 1.5 2 3 Inch Diameter 3mm Thickness 20 FT Ms Black Iron or Steel Pipe for Gas Line, High Quality A36 Seamless Carbon Steel Pipe Sch 80 Carbon Steel Pipe for Construction and so on.