Steel Pipe, Steel Plate, Welded Pipe manufacturer / supplier in China, offering High Strength Corrugated Culvert Pipe for Tunnel Secondary Lining and Culvert Reinforcement, Factory Direct Q195 Q235B Corrugated Culvert Pipe for Construction & Decoration, Galvanized Metal Corrugated Culvert Diameter 1000mm Thickness 3mm Assembled and so on.