... 3.SS400 Q23 4.Galvanized and powder coated Culvert Corrugated Metal Pipe CMP is one kind of flexible, thin-wall ... direction, and combination displacement. The application fields of Culvert Corrugated Metal Pipe1.Highway and railway: culvert, passage, bridge, tunneling overhaul, ... and mining machine passage, aven/shaft5. Civil use: smoke duct for power plant, grain stock, fermentation tank, wind power ...