... 4.Galvanized and powder coated Metal Corrugated Pipe CMP is one kind of flexible, thin-wall, tube with lateral corrugation. It is elastic ... , side direction, and combination displacement. The application fields of Metal Corrugated Pipe1.Highway and railway: culvert, passage, bridge, tunneling overhaul, ... : hot dipped galvanized≥63μm; Reantiseptic (genearlly coated asphalt) Metal Corrugated Pipe